Learn JavaScript. Our policy on modern JavaScript JavaScript is an actively evolving language and has changed greatly over the years. In particular, the 6th edition of the language (sometimes known as ECMAScript 2015 or ES6), introduced in 2015, added many new features. At the same time, to maintain backwards compatibility with older websites, old features of the language have been retained, even when they are no longer considered good practice.
We think that the features added to JavaScript in ECMAScript 2015 and subsequent versions enable developers to write more readable, reliable, and expressive code, and that it's important to learn about them. The features we teach in this course are stable and have been supported by all major browsers for several years. You're only likely to have trouble using them in obsolete browsers, in particular Internet Explorer.
This topic contains the following modules, in a suggested order for working through them. JavaScript first steps JavaScript building blocks. Codecademy. Prefix and Postfix increment/decrement operators Prefix increment / decrement operators are operators that first increase the value of the variable by 1 (increment) or decrease the value of an expression / variable by 1 (decrement) and then return this incremented / decremented value. They are used like ++(variable) [increment] or --(varaible) [decrement] On the other hand , Postfix increment / decrement operators are operators that first return the value of the variable and then increase the value of thAT variable by 1 (increment) or decrease the value of the variable by 1 (decrement) .
They are used like (variable)++ [increment] or (varaible)-- [decrement] Syntax --variable ++variable variable-- variable++ Example var x = 15; var y = x++; console.log(y); console.log(x); var a = 15; var b = ++a; console.log(b); console.log(a); JavaScript. School of Webcraft.
It's even more Peer Powered We know learning is more fun with friends. We've kept the best part of the School of Webcraft and made it the core of everything we do to #TeachTheWeb. We work alongside our peers, ask each other for help, and offer expertise to those in need. The Webmaker Community supports each other in our community forum. Mozilla & P2PU Mozilla's mission is to keep the web open, and to work together to enable anyone to take part in building it's future. We support each other. Webmaker's #TeachTheWeb program is part of Mozilla's commitment to help educators and others teach vital web literacy skills. Getting Started (Javascript Tutorial) - JavaScript. Why JavaScript? JavaScript is a powerful, complicated, and often misunderstood computer language. It enables the rapid development of applications in which users can enter data and view results easily. The primary advantage to JavaScript, which is also known as ECMAScript, centers around the Web browser, thus having the ability to produce the same results on all platforms supported by the browser.
The examples on this page, just like Google Maps, run on Linux, Windows, and Mac OS. What you should already know JavaScript is a very easy language to start programming with. There are many other technologies that can be integrated into and developed along with JavaScript that are beyond the scope of this document. Getting started Getting started with JavaScript is very easy.
JavaScript is a great programming language for introductory computer languages. Browser compatibility issues There are variations between what functionality is available in the different browsers. How to try the examples <!