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Javascript for beginners 20 - getElementById
 
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FREE Educational tutorials http://villageparksource.com/village-park-university/ In this javascript video for beginners. We are learning about coding CSS (Cascading Style Sheet) without JQuery. We get to see the difference of coding CSS in Javascript with and without Jquery
Views: 4519 Village Park Source
JavaScript DOM Tutorial in Hindi Part 19: Accessing DOM Elements in JavaScript in Hindi
 
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Welcome all, we will see Methods for Accessing Elements in the DOM using Javascript in Hindi. Also, DOM: Get Elements by ID, Tag, Name, Class, CSS Selector etc. The easiest way to access a single element in the DOM is by its unique ID. We can grab an element by ID with the getElementById() method of the document object. document.getElementById(); In order to be accessed by ID, the HTML element must have an id attribute.getelementbyid javascript in hindi Guys, Please support my channel by SUBSCRIBE to my channel and share my videos in your Social Network TimeLines. Don't Forget to Follow me on all Social Network, Instagram Link: https://www.instagram.com/vinodthapa55 Facebook Link: https://www.facebook.com/vinodthapa55 Twitter Link: https://twitter.com/vb55thapa Facebook ThapaTechnical Page Link: https://www.facebook.com/vinodbahadurthapa
Views: 2485 Thapa Technical
CSS styles in JavaScript (setting and getting) - Beau teaches JavaScript
 
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How to set CSS properties and styles in JavaScript. Also how to get CSS. This video covers style, cssText, setAttribute, and getComputedStyle. 💻 Code: https://codepen.io/beaucarnes/pen/EmVmbZ?editors=1010 🔗 Resource: https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Properties_Reference 🐦 Beau Carnes on Twitter: https://twitter.com/carnesbeau ⭐JavaScript Tutorials Playlists⭐ ▶JavaScript Basics: https://www.youtube.com/playlist?list=PLWKjhJtqVAbk2qRZtWSzCIN38JC_NdhW5 ▶Data Structures and Algorithms: https://www.youtube.com/playlist?list=PLWKjhJtqVAbkso-IbgiiP48n-O-JQA9PJ ▶Design Patterns: https://www.youtube.com/playlist?list=PLWKjhJtqVAbnZtkAI3BqcYxKnfWn_C704 ▶ES6: https://www.youtube.com/playlist?list=PLWKjhJtqVAbljtmmeS0c-CEl2LdE-eR_F ▶Clean Code: https://www.youtube.com/playlist?list=PLWKjhJtqVAbkK24EaPurzMq0-kw5U9pJh - We're busy people who learn to code, then practice by building projects for nonprofits. Learn Full-stack JavaScript, build a portfolio, and get great references with our open source community. Join our community at https://freecodecamp.com Read great tech articles at https://medium.freecodecamp.com
Views: 8545 freeCodeCamp.org
Assigning event handlers in JavaScript using DOM object property
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/assigning-event-handlers-in-javascript.html In JavaScript there are several ways to associate an event handler to the event. In Part 36, we discussed, associating event handler methods to events using the attributes of HTML tags. In this video we will discuss using DOM object property to assign event handlers to events. First let us understand, what is DOM DOM stands for Document Object Model. When a browser loads a web page, the browser creates a Document Object Model of that page. The HTML DOM is created as a tree of Objects. Example : [html] [head] [title]My Page Title[/title] [/head] [body] [script type="text/javascript"] [/script] [div] [h1]This is browser DOM[/h1] [/div] [/body] [/html] JavaScript can be used to access and modify these DOM objects and their properties. For example, you can add, modify and remove HTML elements and their attributes. Along the same lines, you can use DOM object properties to assign event handlers to events. We will discuss the DOM object in detail in a later video session. We will continue with the same examples that we worked with in Part 36. Notice that in this case, we are assigning event handlers using the DOM object properties (onmouseover & onmouseout) instead of using the attributes of the HTML tag. We are using this keyword to reference the current HTML element. In this example "this" references the button control. [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] document.getElementById("btn").onmouseover = changeColorOnMouseOver; document.getElementById("btn").onmouseout = changeColorOnMouseOut; function changeColorOnMouseOver() { this.style.background = 'red'; this.style.color = 'yellow'; } function changeColorOnMouseOut() { this.style.background = 'black'; this.style.color = 'white'; } [/script] The following example is same as the above. In this case we are assigning an anonymous function to onmouseover & onmouseout properties. [input type="button" value="Click me" id="btn" /] [script type="text/javascript"] document.getElementById("btn").onmouseover = function () { this.style.background = 'red'; this.style.color = 'yellow'; } document.getElementById("btn").onmouseout = function () { this.style.background = 'black'; this.style.color = 'white'; } [/script] If an event handler is assigned using both, i.e an HTML attribute and DOM object property, the handler that is assigned using the DOM object property overwrites the one assigned using HTML attribute. Here is an example. [input type="button" value="Click me" id="btn" onclick="clickHandler1()"/] [script type="text/javascript"] document.getElementById("btn").onclick = clickHandler2; function clickHandler1() { alert("Handler set using HTML attribute"); } function clickHandler2() { alert("Handler set using DOM object property"); } [/script] Using this approach you can only assign one event handler method to a given event. The handler that is assigned last wins. In the following example, Handler2() is assigned after Handler1. So Handler2() owerites Handler1(). [input type="button" value="Click me" id="btn"/] [script type="text/javascript"] document.getElementById("btn").onclick = clickHandler1; document.getElementById("btn").onclick = clickHandler2; function clickHandler1() { alert("Handler 1"); } function clickHandler2() { alert("Handler 2"); } [/script]
Views: 50500 kudvenkat
JavaScript DOM Tutorial #3 - Get Elements By Class or Tag
 
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Hey gang, in this JavaScript DOM tutorial, I'll show youhow we can query the DOM for elements with a certain class name, or tag name. The methods we'll use are: - getElementsByTagName() - getElementsByClassName() ----- COURSE LINKS: + Atom editor - https://atom.io/a + GitHub Repo - https://github.com/iamshaunjp/JavaScript-DOM-Tutorial --------------------------------------------------------------------------------------------- Other tutorials: ----- JAVASCRIPT FOR BEGINNERS: https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET ----- CSS FOR BEGINNERS: https://www.youtube.com/playlist?list=PL4cUxeGkcC9gQeDH6xYhmO-db2mhoTSrT ----- NODE.JS TUTORIALS https://www.youtube.com/playlist?list=PL4cUxeGkcC9gcy9lrvMJ75z9maRw4byYp ----- SUBSCRIBE TO CHANNEL - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg?sub_confirmation=1 ============== The Net Ninja ===================== For more front-end development tutorials & to black-belt your coding skills, head over to - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg or http://thenetninja.co.uk ================== Social Links ================== Twitter - @TheNetNinja - https://twitter.com/thenetninjauk
Views: 27357 The Net Ninja
Document.getElementById in Javascript - Lesson 1
 
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What is Document.getElementById in javascript and how does it work
Views: 62 hammadshams
JavaScript for getElementById
 
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Introduction JavaScript JavaScript is a scripting or programming language that allows you to implement complex things on web pages — every time a web page does more than just sit there and display static information for you to look at — displaying timely content updates, interactive maps, animated 2D/3D graphics, scrolling video jukeboxes, etc. • HTML is the markup language that we use to structure and give meaning to our web content, for example defining paragraphs, headings, and data tables, or embedding images and videos in the page. • CSS is a language of style rules that we use to apply styling to our HTML content, for example setting background colors and fonts, and laying out our content in multiple columns. • JavaScript is a scripting language that enables you to create dynamically updating content, control multimedia, animate images, and pretty much everything else. (Okay, not everything, but it is amazing what you can achieve with a few lines of JavaScript code.) Before You Starting JavaScript You should know basic HTML and CSS
Views: 109 Web Master
What's the difference between IDs & Classes? | HTML, CSS & JavaScript
 
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When developing a website or web application, it's important to keep in mind the difference between an ID and a Class, and to know when to use each one and why. The primary thing to remember about this is that you should be using an ID for a unique element that only exists once on the document whereas classes are more appropriate for multiple elements that serve the same purpose. In this video I take you through this topic and how it affects not only your HTML markup but also your CSS code and JavaScript. For your reference, check this out: https://css-tricks.com/the-difference-between-id-and-class/ Support me on Patreon: https://www.patreon.com/dcode Follow me on Twitter @dcode! If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!
Views: 224 dcode
JavaScript beginner tutorial 24 - referencing elements in JavaScript
 
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In this tutorial I show you to reference elements on your web page using the document.getElementById() method. Don't forget to subscribe: http://www.youtube.com/user/QuentinWatt For collaborations and business inquiries, please contact via Channel Pages: http://ChannelPages.com/QuentinWatt Social links: ------------------------------------------------------------- Add me on twitter: http://www.twitter.com/QuentinWatt facebook group: https://www.facebook.com/quentin.watt -------------------------------------------------------------
Views: 53226 Quentin Watt Tutorials
Javascript Tutorial Part 8: Javascript getElementById
 
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http://www.frameworktv.com | LearnToProgram is now Framework. Visit and join for free daily videos teaching digital skills like coding and design. SUBSCRIBE TO THE FRAMEWORK CHANNEL http://www.youtube.com/subscription_center?add_user=UC4msOaZNMfPwMe_ztV5jFH SUBSCRIBE TO OUR EMAIL LIST (LEARN FOR FREE!) http://www.frameworktv.com/?src=YOUTUBE The Javascript getElementById method is one of the most important Javascript functions. However, many programmers who are just starting out have trouble with it. In this Javascript tutorial, Mark discusses how to use the Javascript getElementById method. Mark demonstrates how to dynamically change stylesheet rules, change content within a div and read a text box with the Javascript getElementById. Continue learning Javascript as instructor Mark Lassoff reviews the Javascript getElementById function. VISIT US ON FACEBOOK https://www.facebook.com/frameworkTechnicallySpeaking/ FOLLOW ON TWITTER https://twitter.com/fw_social INSTAGRAM https://www.instagram.com/frameworksocial/
CALCULATOR USING FORMS WITH GETELEMENTBYID METHOD IN JAVASCRIPT (URDU / HINDI)
 
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JavaScript DOM Tutorial #4 - The Query Selector
 
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Hey all, in this JavaScript DOM tutorial I'll introduce you to the query selector - 2 of them. The first one - document.querySelector, returns a single element. The 2nd one - document.querySelectorAll, returns multiple elements. ----- COURSE LINKS: + Atom editor - https://atom.io/a + GitHub Repo - https://github.com/iamshaunjp/JavaScript-DOM-Tutorial --------------------------------------------------------------------------------------------- Other tutorials: ----- JAVASCRIPT FOR BEGINNERS: https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET ----- CSS FOR BEGINNERS: https://www.youtube.com/playlist?list=PL4cUxeGkcC9gQeDH6xYhmO-db2mhoTSrT ----- NODE.JS TUTORIALS https://www.youtube.com/playlist?list=PL4cUxeGkcC9gcy9lrvMJ75z9maRw4byYp ----- SUBSCRIBE TO CHANNEL - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg?sub_confirmation=1 ============== The Net Ninja ===================== For more front-end development tutorials & to black-belt your coding skills, head over to - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg or http://thenetninja.co.uk ================== Social Links ================== Twitter - @TheNetNinja - https://twitter.com/thenetninjauk
Views: 26225 The Net Ninja
JavaScript - How To Change Element Class Name In JS  [ with source code ]
 
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change div className Using Javascript Source Code: http://1bestcsharp.blogspot.com/2017/01/javascript-change-class-name.html Javascript Tutorials For Beginners ➜ http://bit.ly/2k7NMWq Javascript Course For Beginners ➜ http://bit.ly/2IvBCFC visit our blog https://1bestcsharp.blogspot.com/ facebook: https://www.facebook.com/1BestCsharp twitter: https://www.twitter.com/1BestCsharp_ subscribe: http://goo.gl/nRjPKk In This Javascript Tutorial we will see How To Change DIV Css Class Name In JS Using Netbeans Editor .. More Javascript Tutorials : How to get value of selected radio button https://www.youtube.com/watch?v=uzwUBDQfpkU How to append Value to an array https://www.youtube.com/watch?v=KVdY8n6lCy4 javascript images slider 1 https://www.youtube.com/watch?v=QkcemPr4xaU Convert String To Number https://www.youtube.com/watch?v=JMfZG7o_QtE JavaScript Show And Hide Input Password Text https://www.youtube.com/watch?v=Cmo9sjx5eFE using checkbox with js https://www.youtube.com/watch?v=yFYEHSh2iTQ get And Set Value To An Input https://www.youtube.com/watch?v=AfRHl3soLDg
Views: 3276 1BestCsharp blog
4  getElementById and innerText
 
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Codify Academy, intro to targeting HTML elements from JavaScript and accessing element properties
Views: 474 Evan Winston
OnClick function and getting element by ID in javascript
 
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Fantastic course of JavaScript for free on Udemy :- https://www.udemy.com/javascript-tutorial-video/ Free certification after 100% course completion on Udemy.
Views: 25537 Flipbell IT Studio
Where should the script tag be placed in html
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/11/where-should-script-tag-be-placed-in.html In this video we will discuss, where should the script tag be placed in the html. Should it be placed in the body or head section of the page. In general the script tag can be placed either in the head or body section. Let's look at a few examples : Example 1 : Script tag in the head section [html] [head] [script type="text/javascript"] alert("Welcome to JavaScript Tutorial"); [/script] [/head] [body] [form id="form1" runat="server"] [/form] [/body] [/html] Example 2 : Script tag in the body section [html] [head] [/head] [body] [form id="form1" runat="server"] [/form] [script type="text/javascript"] alert("Welcome to JavaScript Tutorial"); [/script] [/body] [/html] In Example 1 we placed the script tag in the head section and in Example 2, we placed it in body section. In both the cases JavaScript works as expected. Example 3 : Sets the background color of the TextBox to red. [html] [head] [/head] [body] [form id="form1" runat="server"] [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [/form] [script type="text/javascript"] document.getElementById("TextBox1").style.backgroundColor = "red"; [/script] [/body] [/html] Example 4 : This is same as Example 3, except we moved the script tag to the head section. In this case the script will not work as expected. Depending on the browser you are using you get one of the following JavaScript error. Firefox - TypeError: document.getElementById(...) is null Chrome - Uncaught TypeError: Cannot read property 'style' of null IE - Unable to get property 'style' of undefined or null reference To see these JavaScript errors press F12 which launches developer tools. F12 works for all the 3 browsers. [html] [head] [script type="text/javascript"] document.getElementById("TextBox1").style.backgroundColor = "red"; [/script] [/head] [body] [form id="form1" runat="server"] [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [/form] [/body] [/html] Why did the JavaScript did not work in this case JavaScript code is present before the textbox control. By the time the JavaScript code is executed, the textbox is still not loaded into browser DOM (Document Object Model). This is the reason JavaScript can't find the textbox and throws a NULL reference error. In Part 6, we discussed that, in general it is a good practice to store JavaScript in an external .js file. So, if the JavaScript is present in an external file and if you are referencing it on a page using [script] element, where should such [script] element be placed. To answer this question, first let's understand what happens when a browser starts loading a web page. 1. The browser starts parsing the HTML 2. When the parser encounters a [script] tag that references an external JavaScript file. The parser stops parsing the HTML and the browser makes a request to download the script file. Until the download is complete, the parser is blocked from parsing the rest of the HTML on the page. 3. When the download is complete, that's when the parser will resume to parse the rest of the HTML. This means the page loading is stopped until all the scripts are loaded which affects user experience. In general, the suggested good practice is to place the [script] tag just before the closing [body] tag, so it doesn't block the HTML parser. However, modern browsers support async and defer attributes on scripts. These attributes tell the browser it's safe to continue parsing while the scripts are being downloaded. But even with these attributes, from a performance standpoint it is still better to place [script] tag just before closing [body] tag. According to HTTP/1.1 specification browsers download no more than two components in parallel. So, if the page has several images to download and if you place [script] tags at the top of the page, the script files start to download first which blocks the images download which adds to the total page load time.
Views: 95518 kudvenkat
InnerHTML Style Function JS Topic 4.1
 
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In this video you will learn about how to use Inner html function and Style property in Javascript. Video Content http://www.webdesigntutorial.galaxeepro.com/uploads/videoContent/InnerHTML-Style-Function-JS.zip Website http://www.webdesigntutorial.galaxeepro.com/web-design.php
Views: 337 Web Design Tutorial
Change the style of HTML elements with JavaScript | Modificando elementos con JavaScript
 
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Change the style of HTML elements with JavaScript Changing the DOM with getElementById and innerHTML Modificando estilos de elementos html con JavaScript Uso de getElementById y getElementsByTagName. Ademas usamos innerHTML y modificadores estilos, también vemos variables y uso de estilo bootstrap. con Atom, Atom Live Server, js, html. ------------------- Muchas gracias por su visita | Thanks a lot for your visit Sección: Tutoriales muy rápidos JS | very fast tutorials JS ||| Donde Encontrarme @[email protected] Where to find me ||| FaceBook: https://www.facebook.com/profile.php?id=100013497670595 instagram: https://www.instagram.com/nexuzz_scm/ Linkedin: https://www.linkedin.com/in/cristian-m-sguazzin-8a7b2483/ GitLab: https://gitlab.com/NeXuZZ PersonalWebPage: https://nexuzz.gitlab.io/CristianMartinSguazzin/
Onlick event, getElementById method, changing a button's text and text color
 
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In this video we demonstrate the onclick method and how to dynamically change the button's attributes with JavaScript.
Views: 19975 vasillis-javed khan
JavaScript Tutorial - TypeError and ReferenceError issues with object
 
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You can access any undefined property of object and return value will be undefined. JavaScript doesn't give any error when you try to access undefined property name. Property on null or undefined is not possible. var obj = {x:1,y:2}; obj.x; //1 obj.z; //undefined obj.z.x; //TypeError var n = null; n.prop=5; //TypeError if variable y is not declared. y.x; //reference error --------------------------------------------------------------------------------------- Facebook page: https://www.facebook.com/pages/WebTunings/339234242822202 Recommended JavaScript Book: http://www.amazon.com/gp/product/0596805527/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596805527&linkCode=as2&tag=webtuningscom-20 Code snippets: https://github.com/webtunings
Views: 6170 WebTunings
My Personal JavaScript Notes on How to
 
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MyWebSite: https://www.aimiecaprice.com How to store an HTML elements content into a variable. How to write content to a variable using JavaScript. How to run a comparison statement on an HTML elements content When I initially dove into this, creating the condition was the thing that stumped me most. I got the rest of the equation that stated if this condition exists, do xyz. But my problem came with how do you get JavaScript to check if the condition exist and how do you create condition? Actually creating the condition is what really stump me most probably because I was over thinking it. I knew I wanted JavaScript to change the CSS display property depending on what image a user clicked...so I needed to write a function, make the image clickable, and have the function fire off "OnClick" So I created the condition inside the function which meant every time that function fired off the condition would be created by the function. JavaScript would literally write code that stated var x = 1, or var x = 2, depending on which function was being called by the user clicking various different images. . Example var x = 1; if( x == 1) { document.getElementById("desTxt1").style.display = "inline-block"; document.getElementById("desTxt2").style.display = "none"; document.getElementById("desTxt3").style.display = "none"; document.getElementById("desTxt4").style.display = "none"; document.getElementById("desTxt5").style.display = "none"; document.getElementById("desTxt6").style.display = "none"; document.getElementById("desTxt7").style.display = "none"; document.getElementById("desTxt8").style.display = "none"; document.getElementById("desTxt9").style.display = "none"; document.getElementById("desTxt10").style.display = "none"; document.getElementById("desTxt11").style.display = "none"; document.getElementById("desTxt12").style.display = "none"; }
Views: 79 wwwaimiecapricecom
Events in JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/01/events-in-javascript.html What is an event An event is a signal from the browser that something has happened. For example, 1. When a user clicks on an HTML element, click event occurs 2. When a user moves the mouse over an HTML element, mouseover event occurs When events occur, we can execute JavaScript code or functions in response to those events. To do this we need to associate JavaScript code or functions to the events. The function that executes in response to an event is called event handler. In JavaScript, there are several ways to associate an event handler to the event 1. Using the attributes of an HTML tag 2. Using DOM object property 3. Using special methods In this video we will discuss associating event handler methods to events using the attributes of HTML tags. In the following example, the code to execute in response to onmouseover & onmouseout events is set directly in the HTML markup. The keyword "this" references the current element. In this example "this" references the button control. [input type="button" value="Click me" id="btn" onmouseover="this.style.background= 'red'; this.style.color = 'yellow'" onmouseout="this.style.background= 'black'; this.style.color = 'white'" /] The above example, can be rewritten as shown below. In this case the code to execute in response to the event is placed inside a function and then the function is associated with the event. [input type="button" value="Click me" id="btn" onmouseover="changeColorOnMouseOver()" onmouseout="changeColorOnMouseOut()" /] [script type="text/javascript"] function changeColorOnMouseOver() { var control = document.getElementById("btn"); control.style.background = 'red'; control.style.color = 'yellow'; } function changeColorOnMouseOut() { var control = document.getElementById("btn"); control.style.background = 'black'; control.style.color = 'white'; } [/script] Events are very useful in real-world applications. For example they can be used to 1. Display confirmation dialog box on submitting a form 2. Form data validation and many more How to show confirmation dialog in JavaScript [input type="submit" value="Submit" id="btn" onclick="return confirmSubmit()" /] [script type="text/javascript"] function confirmSubmit() { if (confirm("Are you sure you want to submit")) { alert("You selected OK"); return true; } else { return false; confirm("You selected cancel"); } } [/script] JavaScript form validation example : In this example, both First Name and Last Name fields are required fields. When you type the first character in any of the textbox, the background colour is automatically changed to green. If you delete all the characters you typed or if you leave the textbox without entering any characters the background colour changes to red indicating the field is required. We made this possible using onkeyup and onblur events. onkeyup occurs when the user releases a key. onblur occurs when an element loses focus. [table] [tr] [td] First Name [/td] [td] [input type="text" id="txtFirstName" onkeyup="validateRequiredField('txtFirstName')" onblur="validateRequiredField('txtFirstName')"/] [/td] [/tr] [tr] [td] Last Name [/td] [td] [input type="text" id="txtLastName" onkeyup="validateRequiredField('txtLastName')" onblur="validateRequiredField('txtLastName')"/] [/td] [/tr] [/table] [script type="text/javascript"] function validateRequiredField(controlId) { var control = document.getElementById(controlId); control.style.color = 'white'; if (control.value == "") { control.style.background = 'red'; } else { control.style.background = 'green'; } } [/script]
Views: 68206 kudvenkat
SimpleAdmin: Form Styling, Buttons and JavaScript
 
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Coding the SimpleAdmin Theme: Form Styling, Buttons and JavaScript
Views: 1234 Tuts+ Web Design
What is the querySelector method in JavaScript? | Document.querySelector() Explained
 
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In JavaScript, the 'querySelectorAll' method allows you to retrieve a list of Elements that match the CSS Selector that you specify. Essentially, it is a way of finding Elements in JavaScript. It's quitee flexible and lets you search for tags, classes, IDs, parent/child combinations, attributes and so on. In this video I show you a clear and simple example of how it works on the 'document' object as well as another Parent Node - to only search within that parent. For your reference, check this out: https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelectorAll Follow me on Twitter @dcode! If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!
Views: 990 dcode
Javascript Tutorial with Examples For Beginners (pt 1)
 
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This is part one of a series of javascript programming tutorials for beginners. I've created a bunch of example and sample problems for you to solve here: http://www.pyaraapp.com/js-tutorial-1.html Go to that site, open the developer console and type in the following commands and see what happens: /* Javascript Can Change HTML Content */ document.getElementById("demo").innerHTML = "Hello There"; /* JavaScript Can Change HTML Styles (CSS) */ document.getElementById("demo").style.fontSize = "30px"; /* JavaScript Can Hide HTML Elements */ document.getElementById("demo").style.display="none"; /* JavaScript Can Show HTML Elements */ document.getElementById("demo").style.display="block"; The problem with most javascript tutorials is that they don't give you enough example problems. If you are a beginner, it is really hard to learn how to code by just watching videos. You need to go out there and really solve sample problems. What is javascript: JavaScript is the programming language of HTML and the Web. Programming makes computers do what you want them to do. JavaScript is easy to learn. This tutorial series will take you from a JavaScript beginner to an expert. Why Study JavaScript? JavaScript is one of the 3 languages all web developers must learn: 1. HTML to define the content of web pages 2. CSS to specify the layout of web pages 3. JavaScript to program the behavior of web pages This tutorial is about JavaScript, and how JavaScript works with HTML and CSS. Learn by Examples: Examples are better than 1000 words. Examples are often easier to understand than text explanations. This tutorial supplements all explanations with clarifying "Try it Yourself" examples. If you try all the examples, you will learn a lot about JavaScript, in a very short time! In this video, I will use the javascript console thats built into the chrome developer tools to get you to start writing javascript code. With the chrome browser, you will be able to write out some code and see the results immediately. Then I will show you how to store a variable and what a variable really is. Then I will go over the different types of variables and then how to output the values of these variables you created.
Views: 14492 LearnToCode
Chapter 9 How to access HTML elements in Javascript Hindi
 
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Like, Comments, Share and SUBSCRIBE
Beginner JavaScript Tutorial - 39 - Accessing Form Elements
 
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Facebook - https://www.facebook.com/TheNewBoston-464114846956315/ GitHub - https://github.com/buckyroberts Google+ - https://plus.google.com/+BuckyRoberts LinkedIn - https://www.linkedin.com/in/buckyroberts reddit - https://www.reddit.com/r/thenewboston/ Support - https://www.patreon.com/thenewboston thenewboston - https://thenewboston.com/ Twitter - https://twitter.com/bucky_roberts
Views: 208930 thenewboston
11. Accessing DOM Elements in React
 
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Learn how to work with refs and portals to break free from your JSX cage and access your HTML elements directly.
Views: 2717 Kirupa Chinnathambi
Facebook Best 4 Hacks
 
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Codes: 1.Backcolol javascript:void(document.getElementById( 'fb_menubar').style.background='red') 2.Change Name javascript:void(document.title="Facebook | Neo"); 3.Chatlog javascript:buddyList.itemOnClick(ID_HERE ); 4.ChatClose javascript:chatDisplay.tabs[ID_HERE].tab XOnClick(); sorry for false music
Views: 21643 hacks1001
Selecting & Changing Website Elements (DOM manipulation) - Beau teaches JavaScript
 
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JavaScript allows you to select elements from the DOM of a website and then make changes to those elements. This video covers getElementById, getElementsByClassName, getElementsByTagName, QuerySelector, querySelectorAll, innerHTML, and textContent. 💻 Code: https://codepen.io/beaucarnes/pen/vmOzwW?editors=1010 🔗 Resource: https://web.archive.org/web/20171010211719/https://callmenick.com/post/basics-javascript-dom-manipulation 🐦 Beau Carnes on Twitter: https://twitter.com/carnesbeau ⭐JavaScript Tutorials Playlists⭐ ▶JavaScript Basics: https://www.youtube.com/playlist?list=PLWKjhJtqVAbk2qRZtWSzCIN38JC_NdhW5 ▶Data Structures and Algorithms: https://www.youtube.com/playlist?list=PLWKjhJtqVAbkso-IbgiiP48n-O-JQA9PJ ▶Design Patterns: https://www.youtube.com/playlist?list=PLWKjhJtqVAbnZtkAI3BqcYxKnfWn_C704 ▶ES6: https://www.youtube.com/playlist?list=PLWKjhJtqVAbljtmmeS0c-CEl2LdE-eR_F ▶Clean Code: https://www.youtube.com/playlist?list=PLWKjhJtqVAbkK24EaPurzMq0-kw5U9pJh - We're busy people who learn to code, then practice by building projects for nonprofits. Learn Full-stack JavaScript, build a portfolio, and get great references with our open source community. Join our community at https://freecodecamp.com Read great tech articles at https://medium.freecodecamp.com
Views: 21832 freeCodeCamp.org
02 dom manipulation queryselector
 
06:28
Use querySelector to select any element in the DOM using CSS style selector strings.
Views: 173 Mitchell Hudson
Javascript - Changing HTML elements
 
07:54
This tutorial gives an introduction to Javascript by changing HTML elements on the onclick event with the document.getElementById() method.
Views: 3662 Tutormeonlineza
ASP NET TextBox and JavaScript
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/03/aspnet-textbox-and-javascript.html In this video we will discuss 1. JavaScript focus method 2. JavaScript select method 3. How to count the number of characters as you type in a textbox and display that count in a label control JavaScript focus method : focus() method is used to put the keyboard cursor in a particular textbox when the web page loads so that we can start typing without having to first click in the textbox with the mouse. For example, when a web page with the following HTML and JavaScript is loaded, the keyboard cursor is already in the textbox waiting for the user to type his input. There is no need for the user to first click in the textbox with his mouse. Name : [asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox] [script type="text/javascript"] document.getElementById("TextBox1").focus(); [/script] focus() method can be used with most HTML elements. For example, when a web page with the following HTML and JavaScript is loaded, the keyboard focus is set to DropDownList1 control. You can change the Gender value in the DropDownList by pressing ALT + Down Arrow keys simultaneously. Since we are using focus() method there is no need to first click on the DropDownList with the mouse. [table style="border:1px solid black"] [tr] [td]Name[/td] [td][asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox][/td] [/tr] [tr] [td]Gender[/td] [td] [asp:DropDownList ID="DropDownList1" runat="server"] [asp:ListItem Text="Male" Value="Male"][/asp:ListItem] [asp:ListItem Text="Female" Value="Female"][/asp:ListItem] [/asp:DropDownList] [/td] [/tr] [/table] [script type="text/javascript"] document.getElementById("DropDownList1").focus(); [/script] JavaScript select method : select() method is used to select the contents of a text field, so when you start typing, the new text that you have typed will automatically replace the existing selected text. You can use select() method with textbox and textarea controls. When a web page with the following HTML and JavaScript is loaded, the text in the textarea element is selected and when you start typing, the new text that you typed will replace the existing selected text. [table style="border:1px solid black"] [tr] [td]Name[/td] [td][asp:TextBox ID="TextBox1" runat="server"][/asp:TextBox][/td] [/tr] [tr] [td]Comments[/td] [td] [asp:TextBox ID="TextBox2" TextMode="MultiLine" runat="server" Text="Type your comments here"][/asp:TextBox] [/td] [/tr] [/table] [script type="text/javascript"] document.getElementById("TextBox2").select(); [/script] How to count the number of characters as you type in a textbox and display the count in a label control Name : [asp:TextBox ID="TextBox1" runat="server" onkeyup="CountCharacters();"] [/asp:TextBox] [asp:Label ID="Label1" runat="server"][/asp:Label] [script type="text/javascript"] function CountCharacters() { document.getElementById("Label1").innerHTML = document.getElementById("TextBox1").value.length + " charactes"; } [/script]
Views: 32280 kudvenkat
JavaScript Tutorial - CSS computed style - getComputedStyle() - CSSStyleDeclaration Object
 
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partial interface Window { [NewObject] CSSStyleDeclaration getComputedStyle(Element elt, optional DOMString pseudoElt); }; https://github.com/webtunings https://www.facebook.com/pages/WebTunings/339234242822202 I highly recommend this book for beginners as well as advanced programmers: http://www.amazon.com/gp/product/0596805527/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596805527&linkCode=as2&tag=webtuningscom-20
Views: 775 WebTunings
27.Adding CSS with Javascript Style Object - Javascript in Telugu
 
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In This Video You will Learn ====================== 27.Adding CSS with JavaScript Style Object - JavaScript in Telugu About SEO skills ----------------------------------- www.seoskills.in is digital marketing and branding training academy located in Hyderabad, India. We train students, working employee’s and house wives digital marketing and branding tools. Website: https://www.seoskills.in Blog: https://www.alltechskills.com Facebook: https://www.facebook.com/DigitalVidyaHyd
Views: 1955 SEO Skills
hide Content with javascript
 
01:09
http://surveyslda.blogspot.com/ use this code to hide the content you want: document.getElementById('mainContent').style.display = 'none';
Views: 1035 JoIno
Check Screen Width with JavaScript and Display CSS
 
07:50
Determine the user's screen width with JavaScript and then use an appropriate CSS file to render the ideal layout
Views: 9571 Ralph Phillips
Style binding in angular 2
 
07:10
Text version of the video http://csharp-video-tutorials.blogspot.com/2017/06/style-binding-in-angular-2.html Slides http://csharp-video-tutorials.blogspot.com/2017/06/style-binding-in-angular-2_29.html Angular 2 Tutorial playlist https://www.youtube.com/playlist?list=PL6n9fhu94yhWqGD8BuKuX-VTKqlNBj-m6 Angular 2 Text articles and slides http://csharp-video-tutorials.blogspot.com/2017/06/angular-2-tutorial-for-beginners_12.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss Style binding in Angular with examples. Setting inline styles with style binding is very similar to setting CSS classes with class binding. Please wtach Class binding video from Angular 2 tutorial before proceeding with this video. Notice in the example below, we have set the font color of the button using the style attribute. import { Component } from '@angular/core'; @Component({ selector: 'my-app', template: ` [button style="color:red"]My Button[/button] ` }) export class AppComponent { } The following example sets a single style (font-weight). If the property 'isBold' is true, then font-weight style is set to bold else normal. import { Component } from '@angular/core'; @Component({ selector: 'my-app', template: ` [button style='color:red' [style.font-weight]="isBold ? 'bold' : 'normal'"]My Button [/button] ` }) export class AppComponent { isBold: boolean = true; } style property name can be written in either dash-case or camelCase. For example, font-weight style can also be written using camel case - fontWeight. Some styles like font-size have a unit extension. To set font-size in pixels use the following syntax. This example sets font-size to 30 pixels. import { Component } from '@angular/core'; @Component({ selector: 'my-app', template: ` [button style='color:red' [style.font-size.px]="fontSize"]My Button [/button] ` }) export class AppComponent { fontSize: number = 30; } To set multiple inline styles use NgStyle directive 1. Notice the color style is added using the style attribute 2. ngStyle is binded to addStyles() method of the AppComponent class 3. addStyles() method returns an object with 2 key/value pairs. The key is a style name, and the value is a value for the respective style property or an expression that returns the style value. 4. let is a new type of variable declaration in JavaScript. 5. let is similar to var in some respects but allows us to avoid some of the common “gotchas” that we run into when using var. 6. The differences between let and var are beyond the scope of this video. For our example, var also works fine. 7. As TypeScript is a superset of JavaScript, it supports let import { Component } from '@angular/core'; @Component({ selector: 'my-app', template: ` [button style='color:red' [ngStyle]="addStyles()"]My Button[/button] ` }) export class AppComponent { isBold: boolean = true; fontSize: number = 30; isItalic: boolean = true; addStyles() { let styles = { 'font-weight': this.isBold ? 'bold' : 'normal', 'font-style': this.isItalic ? 'italic' : 'normal', 'font-size.px': this.fontSize }; return styles; } }
Views: 67412 kudvenkat
D3.js Tutorial -05 -Modifying HTML Element using style method
 
05:01
D3js is a JavaScript Library which can help to visualize different data on websites. D3js works by manipulating the DOM structure of the HTML page. HTML, CSS, SVG and JavaScript are required to use D3js. D3js Official page:https://d3js.org/#transitions d3.js style methods. In this tutorial we see how to modify HTML using CSS property If you like to code using codepen, https://codepen.io/Asabeneh/pen/QMmEmM?editors=1010
Views: 45 Washera Academy
GS - The most Convex Bond: JavaScript
 
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0:00 Intro to this bond 0:16 Inference from past Interest rate 0:39 Code glance 0:53 Overview of my program 1:08 Data analysis on convexity Goldman Sachs (17/28) one of the most convex A+ bonds? Enter trade when market interest rate is at 6% for max yield? @!DOCTYPE html? @html? @head? @meta charset="UTF-8"? @meta name="description" content="Sam Finance Concepts"? @meta name="keywords" content="Sam Finance Concepts"? @meta name="author" content="Sam Finance Concepts"? @meta name="viewport" content="width=device-width, initial-scale=1.0"? @[email protected]/title? @h1 style="font-size:60px; background-color:lightgrey;" [email protected]/h1? @style? body {background-color: lightgrey;} h1 {color: black; margin-left: 40px;} .center { margin: auto; width: 80%; border: 4px solid #73AD21; padding: 20px; } h2 {color: green; margin-left: 40px; text-align: center; } input[type=text] { width: 100%; padding: 12px 20px; margin: 8px 0; box-sizing: border-box; } .button { background-color: #4CAF50; border: none; color: white; padding: 15px 32px; text-align: center; text-decoration: none; display: inline-block; font-size: 16px; margin: 4px 2px; cursor: pointer; } @/style? @/head? @body? @div class="center"? @form? @font size="6"?Year1 IR% :@/[email protected]? @input type="text" style="font-size:18pt" id="y1" /? @hr? @br? @font size="6"?FinalYear IR% :@/[email protected]? @input type="text" style="font-size:18pt" id="fy" /? @hr? @br? @font size="6"?Total Years between :@/[email protected]? @input type="text" style="font-size:18pt" id="ty" /? @hr? @br? @input type="button" class="button" onClick="f_compound()" value="Calculate" /? @/form? @/div? @script? function f_compound() { y1 = document.getElementById("y1").value; fy = document.getElementById("fy").value; ty = document.getElementById("ty").value; if(isNaN(y1 && fy && ty)) { alert("Please input numbers only"); } else { ex = (1 / (ty - 1)); document.getElementById("result").innerHTML = (Math.pow((Math.pow((1+(fy / 100)),ty)) / (1 + (y1 / 100)), ex) - 1) * 100; } } @/script? @h2?The Approx annual Forward Rate - discrete %: @[email protected]? @span id = "result"[email protected]/span? @/h2? @/body? @/html?
Views: 279 Sam Finance Tech
Javascript document get element by id - in Telugu
 
07:02
In This Video You will Learn ====================== Javascript document get element by id - in Telugu About SEO skills ----------------------------------- www.seoskills.in is digital marketing and branding training academy located in Hyderabad, India. We train students, working employee’s and house wives digital marketing and branding tools. Website: https://www.seoskills.in Blog: https://www.alltechskills.com Facebook: https://www.facebook.com/DigitalVidyaHyd
Views: 2980 SEO Skills
jQuery video tutorial 08 - Coding and executing jQuery
 
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4. Write the jQuery and execute: <body> <h1 id="heading1"> Heading one text </h1> <script type="text/javascript"> //document.getElementById("heading1").style.border="2px solid red"; //jQuery("#heading1").css("border","2px solid red"); $("#heading1").css("border","2px solid red"); </script> </body> ======================================================== Follow the link for next video: https://youtu.be/UvMuWgBzIHc Follow the link for previous video: https://youtu.be/n2QR3ib96Cc ========= For more benefits & Be up to date =================== Subscribe to the channel: https://www.youtube.com/chidrestechtu... Like the Facebook fan page: https://www.facebook.com/ManjunathChidre Visit to Chidre's Tech Tutorials website: http://www.chidrestechtutorials.com ========================================================
JavaScript Tutorial - CSSStyleDeclaration Object - Element's inline CSS style
 
10:05
The CSSStyleDeclaration interface represents a CSS declaration block, including its underlying state, where this underlying state depends upon the source of the CSSStyleDeclaration instance. interface CSSStyleDeclaration { attribute DOMString cssText; readonly attribute unsigned long length; getter DOMString item(unsigned long index); DOMString getPropertyValue(DOMString property); DOMString getPropertyPriority(DOMString property); void setProperty(DOMString property, [TreatNullAs=EmptyString] DOMString value, [TreatNullAs=EmptyString] optional DOMString priority = ""); void setPropertyValue(DOMString property, [TreatNullAs=EmptyString] DOMString value); void setPropertyPriority(DOMString property, [TreatNullAs=EmptyString] DOMString priority); DOMString removeProperty(DOMString property); readonly attribute CSSRule? parentRule; attribute DOMString cssFloat; }; The cssText attribute must return the result of serializing the declarations. The length attribute must return the number of CSS declarations in the declarations. The item(index) method must return the property name of the CSS declaration at position index. https://github.com/webtunings https://www.facebook.com/pages/WebTunings/339234242822202 I highly recommend this book for beginners as well as advanced programmers: http://www.amazon.com/gp/product/0596805527/ref=as_li_qf_sp_asin_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=0596805527&linkCode=as2&tag=webtuningscom-20
Views: 628 WebTunings
Javascript Dersleri 29  - getElementById() ile CSS özelliklerini değiştirmek
 
06:56
Javascript Derslerinin bu videosunda getElementById ile bir elementin CSS özelliklerini değiştirmeyi gördük. Yazılım ve Programlama mı öğrenmek istiyorsunuz ? İşte burası tam size göre. Java Programlama ,Php Programlama,C Programlama ,Python Programlama ve sayısız ücretsiz eğitim videolarıyla yazılım ve programlama öğrenmenin tadına varın. Programlama Eğitimlerimiz: ➤ C Programlama Dersleri : https://goo.gl/wwBJY5 ➤ Python3 Programlama Dersleri : https://goo.gl/VlCxJ9 ➤ Python2 Programlama Dersleri : https://goo.gl/pzWOyn ➤ Android Programlama Dersleri : https://goo.gl/HL0658 ➤ Javascript Programlama Dersleri: https://goo.gl/9VA7UY ➤ HTML5 ve CSS3 Dersleri : https://goo.gl/ad9oUW Eğitimlerimizi beğeniyorsanız “BEĞEN” tuşuna basarak bize destek olabilirsiniz.Her türlü yorum ve düşünceleriniz bizim için çok önemli.Yorumlarınızı eksik etmeyin lütfen.Videoları paylaşarak ailemizi genişletmemize yardımcı olun. Yeni videolarımızdan anından haberdar olmak isterseniz bize abone olabilirsiniz.Ayrıca “Bildirim” tuşuna basarak da videolarımızdan anında haberdar olabilirsiniz. Ücretsiz abone olun : https://goo.gl/1z81oA Herkese merhaba.Ben Mustafa Murat Coşkun.Odtü Bilgisayar Mühendisliği 4.sınıf öğrencisiyim.Yazılım Bilimi kanalını programlama ve yazılım öğrenmek isteyen gençlere ve yazılımcılara faydalı olmak ,aynı zamanda Türkiyede yazılımın ve eğitimin yükselmesi amacıyla 10 Nisan 2015 tarihinde kurdum.Şimdiye kadar elimden geldiğince video yüklemeye çalıştım.Bu kanaldaki amacım Yazılım Bilimini genel bir online akademiye dönüştürüp Türkiye’nin dört bir yanına ücretsiz bir şekilde eğitim verebilmek.Ülkemizin gençleri olarak hep beraber yazılımı ve bilimi herkese aşılamaya çalışalım.Var mısınız? Programlama ve Yazılım Öğrenmeye yeni mi başlıyorsunuz ? İşte yol haritanız. 1.Web geliştirmek ve bu alanda uzmanlaşmak istiyorsanız Temel olarak HTML,CSS,Javascript öğrenmeye çalışın.Daha sonra server-side(sunucu tarafı) diller ile kendinizi geliştirin.(Php,Python Django ,Asp,Ruby On Rails vs.) 2.Mobil uygulama mı geliştirmek istiyorsunuz ? Eğer çok yeniyseniz, ilk başta Python gibi algoritma ve programlama mantığını anlayacağınız bir dille başlayın. Daha sonra hangi ortamda mobil geliştirme yapacağınıza karar verin.IOS geliştirmek istiyorsanız Swift,Android Programlamak istiyorsanız Java öğrenin.Daha sonra Android ve Java geliştirmeye başlarsınız. 3.Masaüstü uygulamaları(Arayüz Uygulamaları) mı geliştirmek istiyorsunuz.Bunun için önünüzde bir çok seçenek var.Python,C#,Java gibi dillerle çok iyi arayüzler çıkarabilirsiniz. 4.Machine Learning ve Yapay zeka ilginizi çekiyorsa yazımı kolay olan ve çok verimli bir dil olan Python size yararlı olacaktır. Sıkça Sorulan Sorular için videolara yorum yazabilirsiniz. ➤ Programlama’ya Nereden Başlamalıyım ? ➤ Programlama için hangi kaynaklardan faydalanmalıyım ? ➤ Programlama için İngilizce bilmek gerekli mi ? ➤ Programlama Kursları faydalı oluyor mu ? ➤ Programlama Dili olarak X’i mi tercih etmeliyim Y’yi mi ? ➤ Programcılık için bilinmesi gereken konular nelerdir ? Sosyal medyadan takip edin : ➤ Twitter https://twitter.com/mustafam_coskun ➤ Instagram :https://www.instagram.com/mustafa_murat/ ➤ Facebook Grubu :https://goo.gl/5GdxrY ➤ Facebook Sayfası : https://www.facebook.com/yazilimbilimi/ ➤Twitter : https://twitter.com/yazilimbilimi
Views: 7368 Yazılım Bilimi
Android Basic Calculator/colorful  Using IntelXdk | Fully Tested On device.
 
18:48
I have explained how to create an Android application using intelXdk in which the app is built on HTML5 . I assume you have basic knowledge of HTML,JAVASCRIPT, AND CSS . # I have written the code to avoid wastage of time . # here is the code , copy and paste them according to the video . #connect your phone via a usb cable so that on every Ctrl+s , you can see the changes as live layout . #The code . // for Button Clearing // will clear all input fields . document.getElementById('result').value=""; document.getElementById('numFirst').value=""; document.getElementById('numSecond').value=""; // adding , substraction, multiplication , division // just change the sign of each accordingly . var num1 = document.getElementById('numFirst').value; var num2 = document.getElementById('numSecond').value; // these values have to be converted to integer to avoid concatination var result = parseInt(num1)+parseInt(num2); // setting the result field input document.getElementById('result').value=result; // for changing the background color document.body.style.backgroundColor="black"; // themesChange button // this is only changing backgrounds of the buttons in order to make it look colorful if(document.body.style.backgroundColor==="black"){ document.body.style.backgroundColor="darkcyan"; document.getElementById('numFirst').style.backgroundColor="darkcyan"; document.getElementById('numSecond').style.backgroundColor="darkcyan"; document.getElementById('result').style.backgroundColor="darkcyan"; document.getElementById('addition').style.backgroundColor="darkcyan"; document.getElementById('division').style.backgroundColor="darkcyan"; document.getElementById('substraction').style.backgroundColor="darkcyan"; document.getElementById('multiplication').style.backgroundColor="darkcyan"; document.getElementById('clearing').style.backgroundColor="darkcyan"; document.getElementById('themesChange').style.backgroundColor="darkcyan"; } // just to toggle the colors else{ document.body.style.backgroundColor="black"; document.getElementById('numFirst').style.backgroundColor="black"; document.getElementById('numSecond').style.backgroundColor="black"; document.getElementById('result').style.backgroundColor="black"; document.getElementById('addition').style.backgroundColor="darkcyan"; document.getElementById('division').style.backgroundColor="darkcyan"; document.getElementById('substraction').style.backgroundColor="darkcyan"; document.getElementById('multiplication').style.backgroundColor="darkcyan"; document.getElementById('clearing').style.backgroundColor="black"; document.getElementById('themesChange').style.backgroundColor="black"; } // the styling part // you can create an external stylesheet and add the link to the index.html page . // don't forget to put the css file inside angle bracket tags // youtube doesn't allow putting "style -- /style" tags . #numFirst,#numSecond,#result{ margin-top:20px; border-left-width:0px; border-right-width:0px; border-top-width:0px; width:90%; margin-left:20px; background-color:black; color:white; } #result{ margin-bottom:20px; } #additon{ border-width:0px; background-color:cornflowerblue; color:white; } #substraction{ border-width:0px; background-color:blueviolet; color:white; } #division{ border-width:0px; background-color:coral; color:white; } #multiplication{ border-width:0px; background-color:crimson; color:white; } #clearing,#themesChange{ background-color:darkseagreen; color:white; border-width:0px; } // Hope , I have helped you . // Thanks For watching and best of luck .
Views: 788 _ hackTech
29: How To Change Elements Using JavaScript | Document Object Model Tutorial | JavaScript Tutorial
 
18:15
In this JavaScript tutorial I will teach you about the BOM and the DOM. We will learn how to change elements using JavaScript and how to change part of an element. Properties and Methods list: https://developer.mozilla.org/en-US/docs/Web/API/Element ➤ CHECK OUT THESE AWESOME PEOPLE! Daniel Simionescu Meet Daniel: another Full-Stack developer who can teach you coding fast and free :D https://www.youtube.com/channel/UCPIe87uLDW-QZ5FnUZqdxoA Code Smarter Hi, I'm Code Smarter, a new content creator. I create coding tutorials and coding challenges. I promise in the upcoming weeks my channel will be filled with content. Check my channel out and subscribe. Link: https://www.youtube.com/channel/UCB9rrRaWmDytZyK_GoHNDBQ?sub_confirmation=1 ➤ GET ACCESS TO MY LESSON MATERIAL HERE! First of all, thank you for all the support you have given me! I am really glad to have such an awesome community on my channel. It motivates me to continue creating and uploading content! So thank you! I am now using Patreon to share improved and updated lesson material, and for a small fee you can access all the material. I have worked hard, and done my best to help you understand what I teach. I hope you will find it helpful :) Material for this lesson: https://www.patreon.com/posts/javascript-29-20777646
Views: 3917 mmtuts
TUTO JS - #9 RÉCUPÉRER DES ÉLÉMENTS HTML
 
19:12
Maintenant que nous avons de bonnes bases en JavaScript (variables, tableaux, conditions, boucles, etc.), je vous propose de commencer à faire interagir nos scripts avec le code HTML de notre page ! Autre fonction dont je n'ai pas parlé dans la vidéo mais qui repose sur le même principe que les autres : getElementsByClassName(), qui permet de récupérer, comme son nom l'indique, des éléments HTML à partir de leur attribut class (https://developer.mozilla.org/fr/docs/Web/API/Document/getElementsByClassName). N'oubliez pas de vous abonner, c'est rapide et sympa ! PS : Il s'agit d'une vidéo tournée avec un setup différent de celui que j'utilise d'habitude car j'étais en convention à ce moment. J'ai tout de même fait en sorte que la qualité vidéo / audio se rapproche au maximum des vidéos que je tourne habituellement. J'espère donc que la qualité de la vidéo vous conviendra ;) --------------------------------------------------------------------------------­----------------- ► S'abonner : https://goo.gl/Cfrt1B ► Site internet : https://primfx.com ► Me suivre (réseaux sociaux) : https://social.primfx.com/ Musique d'intro: https://dlvsound.wordpress.com/ Copyright © PrimFX
Views: 8815 PrimFX
JavaScript - 24. document.write
 
08:12
In this video, we look at document.write, a simple method to change (write to) HTML directly using JavaScript. I also talk about the cautions of using document.write.
Views: 5979 Loot Tutorial

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