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JavaScript Tutorial For Beginners #36 - Changing CSS Styles
 
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Hey ninjas, in this JavaScript tutorial, we'll be looking again at the setAttribute method to control in-line styling of our HTML elements, as well as utilizing the 'style' property that all DOM objects have access to. If you have any questions at all, fire away :). SUBSCRIBE TO CHANNEL - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg?sub_confirmation=1 ========== JavaScript for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET ========== CSS for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9gQeDH6xYhmO-db2mhoTSrT ========== HTML for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9ibZ2TSBaGGNrgh4ZgYE6Cc ========== 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: 33660 The Net Ninja
Javascript Tutorial | Changing Element's CSS Style's
 
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Javascript works hand in hand with the DOM as we know. So how about changing text and information within the DOM. Well we can easily do this by targeting an object that represents a DOM element in Javascript and modify the innerHTML and innerText properties. This tutorial is brought to you by http://www.avelx.co.uk/ - Coding tutorials to help you grow.
Views: 3474 Avelx
Learn JS HTML Dom In Arabic #29 - Elements - Style
 
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أهم دروس الكورس شرح تغيير تنسيق ال Css الخاص بالعناصر بالجافا سكريبت
Views: 6629 Elzero Web School
JavaScript Lecture 11 - Modifying Element Style with DOM CSS with example
 
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JavaScript Lecture 11 - Modifying Element Style with DOM CSS with example Like Us on Facebook - https://www.facebook.com/Easy-Engineering-Classes-346838485669475/ JavaScript Classes in Hindi JavaScript Tutorial for Beginners in Hindi JavaScript Study Notes Web Engineering Notes Web Technology Notes
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: 37868 The Net Ninja
How to Style Console Output (in Javascript)
 
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Did you know you can use CSS to add styles to your Javascript console output? This is common to see on social media websites such as Facebook or Google Plus, where they have big red text appearing in the console saying "WARNING!" or similar to prevent you from entering malicious code. It's relatively straightforward to use and with basic knowledge of Javascript and CSS, you can pull it off. For your reference: https://developer.mozilla.org/en-US/docs/Web/API/Console/log If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!
Views: 529 dcode
Class List (classList) Property - Javascript DOM
 
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The 'Class List' (HTMLElement.classList property) allows you to powerfully manipulate the classes attached to an HTML Element. You can use it to add, remove, toggle and even replace classes on an element. In this video we look at a visual example (through the help of CSS) as to how exactly you can use this functionality. For your reference: https://developer.mozilla.org/en-US/docs/Web/API/Element/classList If this video helped you out and you'd like to see more, make sure to leave a like and subscribe to dcode!
Views: 3084 dcode
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: 54024 kudvenkat
Javascript et le DOM | Partie 3 - Modifier le Style
 
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▼▼▼ Plus d'infos ▼▼▼ Accédez au cours complet "Javascript débarque dans notre Navigateur" ► https://apprendre-a-coder.com/cours/javascript-dans-navigateur Retrouvez encore plus de cours sur https://apprendre-a-coder.com ✔ Vidéos en français ✔ Quiz Récapitulatifs ✔ Projets Concrets ✔ Certificats de Réussite ✔ Suivi automatique de votre évolution ✔ Cours GRATUITS ▬▬ Restons connectés ▬▬ Abonnez-vous ► http://bit.ly/aac_youtube Facebook ► http://bit.ly/aac_facebook Twitter ► http://bit.ly/aac_twitter
Views: 572 Apprendre à coder
Tutorial Javascript Indonesia || DOM CSS Style
 
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Pada video tutorial javascript bahasa indonesia kali ini, kita akan mempelajari suatu cara gimana sih merubah style pada HTML dan CSS kita menggunakan JavaScript. Oke guys, just watch a video. Enjoy! get in touch : facebook : fb.me/arscarry twitter: @ayolearn instagram : pandastwn
Views: 1661 Angga Risky
Javascript DOM - #24 - Cách dùng DOM Token List và CSS Style Declaration
 
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Series Video Hướng dẫn về Javascript cơ bản miễn phí. ---------------------------------------- Group Trao đổi kiến thức: https://www.facebook.com/groups/322299328392674/ Facebook Mentor: https://www.facebook.com/congluc1902 ---------------------------------------- Nhận dạy kèm Front End qua Skype, Teamviewer từ cơ bản đến nâng cao theo lộ trình riêng từng học viên. Liên hệ Facebook hoặc SĐT: 0343 261 825
Views: 108 Oliver Tran
Redux Style DOM Manipulation in JavaScript
 
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As I have faced a lot of issues related to DOM Manipulation most of the time to incorporate new changes inside that DOM. This is the best solution for it. Reference Links GitHub Repository https://github.com/onlinegurucool/redux-style-dom-manipulation Don't forget to checkout branch[with-relation-change] More information about JavaScript Arrays https://youtu.be/7p8nKub6u3c?t=458 Follow us on https://fb.me/onlinegurucool https://twitter.com/OnlineGuruCoool Small Support for my Channel Rs 10:- https://p-y.tm/CKf-pbu Rs 50:- https://p-y.tm/mygU-bh Rs 100:- https://p-y.tm/UE7I-6l
Views: 20 Online GuruCool
Style a web page using JavaScript and the DOM
 
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How to style a web page using JavaScript and the Document Object Model (DOM)
Views: 2 Steve Giles
JavaScript Tutorial For Beginners DOM 35 Change Style |Kurdish|
 
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Views: 114 Via JS
Traversing the DOM with JavaScript
 
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In this excerpt from the JavaScript for WordPress Master Course, educator, Zac Gordon, walks through how you can traverse to parent, children and symboling elements in JavaScript. Learn more from the full post here: https://javascriptforwp.com/the-dom/
Views: 5973 Zac Gordon
Change Style Sheet Using Javascript Tutorial CSS Swap Stylesheet
 
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Lesson Code: http://www.developphp.com/video/JavaScript/Change-Style-Sheet-Using-Tutorial-CSS-Swap-Stylesheet Learn to change the entire style of your web page with a click using JavaScript that is targeting the href attribute of your familiar link element using the setAttribute method of JavaScript. DEMO: http://www.adamkhoury.com/demo/js_swap_css_stylesheet/
Views: 46224 Adam Khoury
Shadow Dom in HTML Introduction tutorial
 
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What is shadow dom in html5 and how to use it , a basic introduction to Shadow dom . Url to code samples : https://jsfiddle.net/jspatel/rwqsf7sk/ https://jsfiddle.net/jspatel/bducoqja/ We will cover following topic in this tutorial : - What is shadow dom - How to add a shadow root - HOw to add elements to shadow root - How to add styles to element in shadow dom. - HOw to use template element with shadow dom Shadow Dom in HMTL Introduction tutorial html shadow DOM html5 shadow DOM CSS3 Shadow dom html template shadow dom shadow dom support What is shadow dom introduction to shadow dom shadow dom basic shadow dom 101 fundamentals of shadow dom css scoping web component Dom tree ecapsulation shadow root shadow host template element host:: pseudo classes in css shadow doms
Views: 25474 techsith
JavaScript Tutorial for Beginners - 42 - Traversing the DOM Part 3
 
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In this video we will discuss the concept of traversing the DOM. Javascript code: http://pastebin.com/VzNkgeJB HTML code: http://pastebin.com/CagugH4Q CSS code: same as last video
Views: 20703 EJ Media
Custom Data Attributes HTML JavaScript CSS Tutorial
 
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Source: http://www.developphp.com/video/JavaScript/Custom-Data-Attributes-HTML-JavaScript-CSS-Tutorial Learn to use custom data attributes. Custom data attributes allow authors to create custom data to apply to their HTML elements when no other attributes make sense to use to store extra data. They help extend the information that html elements can communicate to a program or script. Custom data attributes can be accessed through both JavaScript and CSS.
Views: 28000 Adam Khoury
JavaScript DOM Events - Part 2 - Manipulate CSS
 
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In this video, you will learn how to manipulate CSS properties using JavaScript. This video will guide you to pickup the HTML element whose CSS property you wish to manipulate using JavaScript. You will learn about document.getElementById and it various option.
Views: 481 iWillStudy.com
The DOM: What's the Document Object Model?
 
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The DOM: What's the Document Object Model? The DOM is the browser's internal, progrematic representation of a webpage. Languages like javascript allow you to modify the DOM, and thus the website without editing the HTML of the page. Technically, the DOM is an API (application programming interface). There are many types of APIs, but this particular API interacts with XML and HTML documents. It's in charge of how those documents are accessed and manipulated. Really, you can do a lot with the dom, and if you're already scripting in JS and jQuery, you're already doing it. You can insert new things, elements, or alter style or content for elements that already exist. This can be done with pure javascript, like: document.getElementById(id) element.getElementsByTagName(name) document.createElement(name) You can also use libraries like jQuery to simplify, standardize and automate manipulating the DOM, like: $('#box2').append("This will be added to box2!")
Views: 44691 freeCodeCamp.org
PSY - GANGNAM STYLE(강남스타일) M/V
 
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PSY - ‘I LUV IT’ M/V @ https://youtu.be/Xvjnoagk6GU PSY - ‘New Face’ M/V @https://youtu.be/OwJPPaEyqhI PSY - 8TH ALBUM '4X2=8' on iTunes @ https://smarturl.it/PSY_8thAlbum PSY - GANGNAM STYLE(강남스타일) on iTunes @ http://smarturl.it/PsyGangnam #PSY #싸이 #GANGNAMSTYLE #강남스타일 More about [email protected] http://www.psypark.com/ http://www.youtube.com/officialpsy http://www.facebook.com/officialpsy http://twitter.com/psy_oppa https://www.instagram.com/42psy42 http://iTunes.com/PSY http://sptfy.com/PSY http://weibo.com/psyoppa http://twitter.com/ygent_official
Views: 3370842554 officialpsy
Javascript DOM crash course
 
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This is a crash course on DOM . A 20 minute video to get you started with JS DOM.
Views: 25 DeAn Careers
Javascript Tutorial | Targeting DOM Elements
 
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Returning the entire document object is not beneficial when working with the DOM. In this case we'll run some methods on the document object and have a single object returned for one DOM node. Modifying this object will effect the DOM element itself, also we'll look at targeting multiple DOM element's that are returned in an array. This tutorial is brought to you by http://www.avelx.co.uk/ - Coding tutorials to help you grow.
Views: 2225 Avelx
JavaScript Tutorial For Beginners #40 - The onClick Event
 
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Hey ninjas / ninjarettes, in this JavaScript tutorial I want to run through a detailed example of how we can use the onclick event in JavaScript to create cool functionality on our websites. In this example I'll use the onclick event to create a 'show more' style content box which expands and shrinks as you click the button. Any questions, fire away :). SUBSCRIBE TO CHANNEL - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg?sub_confirmation=1 ========== JavaScript for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9i9Ae2D9Ee1RvylH38dKuET ========== CSS for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9gQeDH6xYhmO-db2mhoTSrT ========== HTML for Beginners Playlist ========== https://www.youtube.com/playlist?list=PL4cUxeGkcC9ibZ2TSBaGGNrgh4ZgYE6Cc ========== 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: 94884 The Net Ninja
JavaScript Pro Tips - Code This, NOT That
 
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New Series! Code this 💪, not that 💩. Learn how to write solid modern JavaScript and avoid bad code from the olden days. https://angularfirebase.com - Source https://github.com/codediodeio/code-this-not-that-js
Views: 630592 Fireship
Javascript Tutorial | Changing an Element's Style | Ep33
 
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Javascript works hand in hand with the DOM as we know. So how about changing text and information within the DOM. Well we can easily do this by targeting an object that represents a DOM element in Javascript and modify the innerHTML and innerText properties. This Javascript tutorial is brought to you by http://www.avelx.co.uk/ - Coding tutorials to help you grow.
Views: 774 Avelx
Partial Print Document JavaScript Tutorial HTML div Content
 
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Lesson Code: http://www.developphp.com/video/JavaScript/Partial-Print-Document-Tutorial-HTML-div-Content Learn to allow users to print specific parts of your documents instead of printing the entire web page. We will apply print buttons near each printable portion of the document.
Views: 89513 Adam Khoury
JavaScript Lecture 10 - Document Object Model (DOM), DOM Tree of Objects with Example
 
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JavaScript Lecture 10 - Document Object Model (DOM), DOM Tree of Objects with Example Like Us on Facebook - https://www.facebook.com/Easy-Engineering-Classes-346838485669475/ JavaScript Classes in Hindi JavaScript Tutorial for Beginners in Hindi JavaScript Study Notes Web Engineering Notes Web Technology Notes
13 - JS DOM CSS - Learn JavaScript in Urdu & Hindi
 
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📝 In this lecture, we will discuss JavaScript #DOM CSS Methods. We can use DOM CSS methods to change styles of HTML elements with #JavaScript Compete Course Link 👉 https://wpacademy.pk/course/learn-javascript-in-urdu - Make sure to enroll in course if you don't want to miss new lectures. ----------------------------------------------------------------------------- 🙌 Support This Channel by Buying Stuff Below ----------------------------------------------------------------------------- ✔ Elementor Pro: https://elementor.com/?ref=2278 - ✔ Buy Domain & Hosting [NameCheap] ➡ http://bit.ly/2JC7yIc ------------------------------------------------------------- 👨‍👩‍👦 JOIN OUR SOCIAL COMMUNITY:- ------------------------------------------------------------- Fan page: https://www.facebook.com/wpacademypk/ Group: https://www.facebook.com/groups/xitclub Forums: https://wpacademy.pk/forums
Views: 87 WP-Academy
Drag and Drop using HTML, CSS and JAVASCRIPT (without libraries)
 
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This video shows you how to create a drag and drop functionality in html,css and javascript without any libraries
Views: 39404 Code Limitless
Steve Kinney: Bringing Back the 1990s: The Revenge of JavaScript Style Sheets | JSConf EU 2017
 
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http://2017.jsconf.eu/speakers/steve-kinney-bringing-back-the-1990s-the-revenge-of-javascript-style-sheets.html JavaScript Style Sheets (JSSS) was a technology introduced by Netscape in 1996. Chances are, you’ve never heard of JSSS, since it was available in Netscape Communicator 4.0. They allowed you to define custom styling rules for your web pages. You’re probably more familiar with its competitor at the time—CSS. They were pretty cool though. JSSS allowed the developer to style the DOM using a full programming language with variables, conditionals, and functions. The obvious spoiler alert here is that CSS won and JSSS lost, right? It’s not that simple. A lot of the ideas from JSSS have slowly been creeping back into our toolset. SASS brought programming logic back into styling our applications. CSS picked up variables and the ability to do calculations. Finally, the React community has been—maybe unknowingly—bringing JSSS back from the dead. In this talk, we’ll take a good hard look at JSSS and the ways in which JSSS has had enduring legacy after its untimely demise.
Views: 3448 JSConf
(Ep1) Mandala Maker in JavaScript (functional style)
 
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Let's build a mandala maker in JavaScript and HTML canvas, using concepts from functional programming 😊😋 ⭐️ Support the channel on Patreon: https://www.patreon.com/christopherokhravi Links mentioned in this video: - https://24ways.org/2018/the-art-of-mathematics/ - https://24ways.org/
Views: 1007 Christopher Okhravi
JavaScript - 27. DOM events- onclick and onmouseover
 
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With HTML DOM you can use JavaScript to react to certain HTML events, such as clicking on to a certain part of your website, hovering over it, and so on. In this video, we look at onclick, onmouseover, and onmouseout.
Views: 10324 Loot Tutorial
8.7: The Basics of CSS - p5.js Tutorial
 
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This video covers the very very basics of CSS. I look at how to write a selector in a style tag as well as how to use the p5 style() function. More to come! Support this channel on Patreon: https://patreon.com/codingtrain Contact: https://twitter.com/shiffman Send me your questions and coding challenges!: https://github.com/CodingTrain/Rainbow-Topics Link to code on Github: https://github.com/CodingTrain/Rainbow-Code p5.js: http://p5js.org For More p5.js Videos: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6Zy51Q-x9tMWIv9cueOFTFA Help us caption & translate this video! http://amara.org/v/Qbu2/
Views: 25614 The Coding Train
第50讲 dom对象style对象② 简易js购物车 复选框全选和取消 dom对象formsform对象①
 
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视频模糊? 请点击视频右下角的"小齿轮",选择为720P,然后再稍微微调一下进度条,就能清楚­影视咯。 有什么问题或建议,欢迎来到我的facebook专栏 https://www.facebook.com/LearningEnter 亲~ 记得点"like"或"赞"哟 ! 我们的频道网址: http://www.LearningEnter.com
Views: 858 LearningEnter Yu
6. DOM: Style Your Document | DOM বাংলা টিউটোরিয়াল
 
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Checkout Our Other Videos https://youtube.com/twinklecats Client Side Javascript or DOM Manipulation complete tutorial series in bangla. If you want to learn web design using javascript this course willl be great for you. You will learn how to manipulate DOM with the help of vanilla javascript. Gitter Link: https://gitter.im/Twinkle-Cats/Lobby Please Like, Comment and Share our videos and Please Subscribe For any query feel free to contact with me. I am Hasan Mahmud Nayem (HM Nayem) fb.com/hmnayem95 twitter.com/hmnayem github.com/hmnayem [email protected] fb.com/twinklecats Follow Me
Views: 1166 Twinkle Cats
D3.js Tutorial -05 -Modifying HTML Element using style method
 
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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: 70 Washera Academy
Changing styles | HTML/JS: Making webpages interactive | Computer Programming | Khan Academy
 
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Created by: pamela (KA teacher) Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/computing/computer-programming/html-css-js/html-js-dom-modification/p/challenge-style-guide?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Watch the next lesson: https://www.khanacademy.org/computing/computer-programming/html-css-js/html-js-dom-modification/p/changing-css-classes?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Missed the previous lesson? https://www.khanacademy.org/computing/computer-programming/html-css-js/html-js-dom-modification/p/changing-attributes?utm_source=YT&utm_medium=Desc&utm_campaign=computerprogramming Computer Programming on Khan Academy: Learn how to program drawings, animations, and games using JavaScript & ProcessingJS, or learn how to create webpages with HTML & CSS. You can share whatever you create, explore what others have created and learn from each other! About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy's Computer Programming channel: https://www.youtube.com/channel/UCzYDKG5mmfPPIosXuQ1PvEA?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy
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: 815 WebTunings
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: 73722 kudvenkat
Oleg Slobodskoi: JavaScript Style Sheets
 
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Oleg Slobodskoi, Chatgrape, Berlin on Javascript Style Sheets About the good parts of writing styles in javascript using JSS. Comparison to other existing CSS solutions and points about negative aspects got so far. Slides are here https://speakerdeck.com/reactamsterdam/oleg-slobodskoi-chatgrape-berlin-javascript-style-sheets If you tweet, don't forget to #reactamsterdam tag it!
What is Computed Style and getComputedStyle Method in JavaScript (Hindi)
 
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What is Computed Style and getComputedStyle Method in JavaScript You can find out our HTML Complete Video tutorials : http://goo.gl/O254f9 CSS Complete Video Tutorial Playlist: http://goo.gl/On2Bh1 Feel free to share this video Core JavaScript Complete Video Tutorial Playlist https://goo.gl/A517jQ Advance JavaScript Complete Video Tutorial Playlist https://goo.gl/mNTBhU Check Out Our Other Playlists: https://www.youtube.com/user/GeekyShow1/playlists SUBSCRIBE to Learn Programming Language ! http://goo.gl/glkZMr Learn more about subject: http://www.geekyshows.com/ __________________________________________________________ If you found this video valuable, give it a like. If you know someone who needs to see it, share it. If you have questions ask below in comment section. Add it to a playlist if you want to watch it later. ___________________________________________________________ T A L K W I T H M E ! Business Email: [email protected] Youtube Channel: https://www.youtube.com/c/geekyshow1 Facebook: https://www.facebook.com/GeekyShow Twitter: https://twitter.com/Geekyshow1 Google Plus: https://plus.google.com/+Geekyshowsgeek Website: http://www.geekyshows.com/ ___________________________________________________________ Make sure you LIKE, SUBSCRIBE, COMMENT, and REQUEST A VIDEO :) ___________________________________________________________
Views: 860 Geeky Shows
Javascript Tutorial For Beginners 2017 HTML DOM 13
 
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Do you want to develop Dynamic Websites? then Use JavaScript to add new features and a richer, more compelling user interface on web pages. This course keeps current best practices and practical uses for JavaScript in mind, while covering syntax, working with the DOM, and developing and debugging across multiple platforms, devices, and browsers. I Will also shows how to progressively enhance and gracefully degrade web pages, and take advantage of the world of JavaScript libraries now available. Topics include: Understanding the structure of JavaScript code Creating variables, functions, and loops Writing conditional code Sending messages to the console Working with different variable types and objects Creating and changing DOM objects Event handling Working with timers Debugging JavaScript Building smarter forms Working with CSS, HTML5, and JavaScript Using regular expressions FaceBook Group: https://www.facebook.com/groups/996305460498149/ Let's Connect : Twitter: https://goo.gl/9rmbxI Youtube: https://goo.gl/mmFkgB GooglePlus: https://plus.google.com/u/1/+AwaisMirza1 Facebook: https://www.facebook.com/awaismirza01/ Snapchat:Add me on Snapchat! Username: mirzaawais https://www.snapchat.com/add/mirzaawais
Views: 674 Awais Mirza
Wydajne style w JS 😱 opowieści, skrypty #6
 
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Kontynuujemy serię o wydajności związanej ze stylami. Tym razem przeniesiemy się do JavaScriptu! Moje kursy: ⭐️ Kurs React od podstaw - https://eduweb.pl/kursy/javascript/react-od-podstaw.html?partner=helloroman ⭐️ Kurs React w praktyce - https://eduweb.pl/kursy/javascript/react-w-praktyce.html?partner=helloroman 🔎 Link do artykułu: https://coderwall.com/p/o9ws2g/why-you-should-always-append-dom-elements-using-documentfragments 🔔 Subskrybuj mój kanał - https://www.youtube.com/helloroman?sub_confirmation=1 📌 Sprawdź też: http://instagram.com/siemaroman https://facebook.com/helloroman.vlog https://discord.io/helloroman ✉️ Kontakt - [email protected] W moich filmach znajdziecie wiele praktycznych porad, jak zacząć swoją przygodę z programowaniem, na co uważać, jak motywować się do pracy, aby nie stracić zapału. Wspólnie odkrywać będziemy możliwości jakie kryją JavaScript, HTML i CSS – pomogę Wam także zrozumieć, jak skutecznie wykorzystywać potencjał popularnych frameworków, takich jak Vue lub React.
Views: 8862 hello roman
HTML5, CSS3 & JavaScript | Manipulating CSS Styles with Firebug on Mozilla | Chap-2 | Part-2
 
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Firebug extension for Mozilla is a tool that both helps in analyzing and manipulating the CSS styles. In this lesson, we are going to focus onto the additional feature of Firebug plugin. We are going to manipulate our rendered page directly on our browser. First, we shall start off with a simple page and we will try to change the color of the contents that are placed as paragraph elements. When we feel comfortable about the changes that we make, we shall move onto a more real life web page. Manipulating or changing the predefined styles will help us to understand how styles are applied to DOM elements from HTML using CSS and it will also introduce us to newer styling concepts from other developers. Additionally, Firebug provides us with two distinct options of targeting a DOM element on the page. The first one is by clicking on the corresponding element on the FIrebug output or by hovering over the given element on the web page will highlight the matched element in on the DOM. To permanently keep our selection, we can hover over the element and click its content to select the entire section. This will show the CSS styles that have been applied to that specific element and will eliminate the irrelevant ones by cutting out the rules on the style section.
Views: 127 Nafis's Classroom
Learn JavaScript With Me - The Browser 4 - Modal Window DOM Styling - Ch 9 HD Video - Tutorial
 
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This JavaScript video demonstrates how to create a modal window which sits on top of the greyed out main page. We introduce the HTML DOM style display and visibility properties along with the getComputedStyle() method. Our example starts with a page that has a show window button. When pressed another window show on top and the original window is styled to 90% opacity. The new window (modal because the visitor cannot do anything else outside this window). The Modal Window provides a button to close itself. This is the forth exercise from chapter 9 in the book Modern JavaScript: Develop and Design by Larry Ullman. Code will be available on DaveCoast.com. My JavaScript sandbox is your JavaScript sandbox - js.davecoast.com. Thanks for watching - hopefully we both know a little more JavaScript now, Dave at DaveCoast.com.
Views: 816 Dave StSomeWhere
JavaScript Tutorial - CSSStyleDeclaration Object - Element's inline CSS style
 
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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: 654 WebTunings
Crockford on JavaScript - Section 8: Programming Style & Your Brain
 
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In this keynote talk from YUIConf 2011, Yahoo! JavaScript architect Douglas Crockford drops some science to explain why code style is important in programming -- particularly in JavaScript -- and how tools like JSLint can help.
Views: 103575 YUI Library
WEB2 JavaScript - 9. CSS 기초 : style 속성
 
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생활코딩은 일반인에게 프로그래밍을 알려주는 활동입니다. 더 많은 정보를 원하시면 http://opentutorials.org/course/1 를 방문해주세요.
Views: 19701 생활코딩