JavaScript (/ˈdʒɑːvəskrɪpt/), often abbreviated JS, is a programming language that is one of the core technologies of the World Wide Web, alongside HTML and CSS. As of 2022, 98% of websites use JavaScript on the client side for web page behavior, often incorporating third-party libraries. All major web browsers have a dedicated JavaScript engine to execute the code on users' devices.
JavaScript is a high-level, often just-in-time compiled language that conforms to the ECMAScript standard. It has dynamic typing, prototype-based object-orientation, and first-class functions. It is multi-paradigm, supporting event-driven, functional, and imperative programming styles. It has application programming interfaces (APIs) for working with text, dates, regular expressions, standard data structures, and the Document Object Model (DOM).
The ECMAScript standard does not include any input/output (I/O), such as networking, storage, or graphics facilities. In practice, the web browser or other runtime system provides JavaScript APIs for I/O.
JavaScript engines were originally used only in web browsers, but are now core components of some servers and a variety of applications. Two of the most popular runtime systems for this usage are Node.js and Deno.
Although Java and JavaScript are similar in name, syntax, and respective standard libraries, the two languages are distinct and differ greatly in design.
Reference: WIKIPEDIA
1427 questions
var walk = function(dir, done) { var results = []; fs.readdir(dir, function(err, list) { if (err) return done(err); var pending = list.length; if (!pending) return done(null, results); list.for...
var myArray = ['January', 'February', 'March'];I want to bring any element randomly when I have an array like this, what should I do?
I want to print elements of the array separated by commas in JavaScriptHow shall I do it?
When you erase elements of an array in JavaScript, you use the delete operator or the array's method, splice.What's the difference between these two?myArray = ['a', 'b', 'c', 'd'];//delete myArray[1];...
I want to change all the open characters in the string to br tag. For example, This is man. Man like dog. Man like to drink. Man is the king.I don't know how to use these strings This is man<br ...
I'm looking for the fastest and easiest way to pre-load images from JavaScript. I don't know if this is important, but I'm using jquery.I found the following source on the Internet. function complexLo...
For example, random (1,6); I want to take any number between 1, 2, 3, 4, 5, 6 Is it possible with JavaScript?
How do I clear a space in a string?Input : '/var/www/site/Brand new document.docx'Output : '/var/www/site/Brandnewdocument.docx'I want this kind of result.
Does the Esc key differ from browser to browser? It's 27 in Explo or Chrome and 0 in Firefox$('body').keypress(function(e){ alert(e.which); if(e.which == 27){ // // Close my modal window }});
I want to fill the array with zero in JavaScript, what should I do?
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