why use javascript

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why use javascript

JavaScript is supported by most modern web browsers like Google Chrome, Firefox, Safari, Microsoft Edge, Opera, etc. For example, you can use a special JavaScript construct called the onLoad event handler to trigger an action — play a little welcoming tune, perhaps — when the document is loaded onto a Web browser. JavaScript References. And that page may be viewed by a phone, a palm-top, a braille-reader, a screanreader a bot, a…etc. var1 == var2. Nothing gets converted before being evaluated. Meteor allows for rapid prototyping and produces cross-platform Ember The web browser is one of the most used applications on both desktop and mobile devices. When using === for JavaScript equality testing, everything is as is. The reference contains examples for all properties, methods and events, and is continuously updated according to the latest web standards. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. Most of the functions and applications that make the Internet indispensable to modern life are coded in some form of JavaScript. Moral of the story: Use === unless you fully understand the conversions that take place with ==. NO. JavaScript works with HTML and CSS to build web apps or web pages. When using == for JavaScript equality testing, some funky conversions take place. Why we use then() method in JavaScript ? JavaScript is a programming language used primarily by Web browsers to create a dynamic and interactive experience for the user. Examples of other HTML objects that you interact with using JavaScript include windows, text fields, images, and embedded Java applets. Last Updated: 30-06-2020. JavaScript is free to use for everyone. If you were to bootstrap Node.js with Express, use a document database like MongoDB, and use JavaScript on the frontend for clients, it is possible to develop an entire JavaScript app from front to back using only JavaScript. If you haven’t tried Angular yet, you’re missing out on why people say JavaScript is the most flexible language in the world. The then() method in JavaScript has been defined in the Promise API and is used to deal with asynchronous tasks such as an API call. js. If you want to use JavaScript for backend development, the average salary in the US for Node.js developers is about $98,962. So why not use that? Q&A for Work. Meteor, or MeteorJS, is a free and open-source isomorphic JavaScript web framework written using Node. Previously, callback functions were used instead of this function which made the code difficult to maintain. What is JavaScript, and why is it important? Javascript has it’s uses, even for non-UI stuff. Versatility - There are many ways to use JavaScript through Node.js servers. Among other reasons, fundamentalists state: JavaScript controls the dynamic elements of web pages. Do they all have javascript? etc. Most mobile browsers for Android and iPhone now support JavaScript as well. But using it should never break the page…that’s the whole issue. There are a number of different places where JavaScript can be used but the most common place to use it is in a web page. In fact, for most people using JavaScript, in a web page is the only place where they use it. I've seen many articles around the internet from JavaScript fundamentalists that advocate writing your own JavaScript code instead of using JavaScript frameworks like MooTools, Prototype / Scriptaculous, jQuery, MochiKit, YUI Library, and Dojo Toolkit, and I just cannot agree with their reasons for not using these spectacular frameworks.. Teams. Future. W3Schools maintains a complete JavaScript reference, including all HTML and browser objects.

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