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
document.all.regTitle.innerHTML = 'Hello World';RegTitle is the ID of the div. I want to do it like this. What should I do?
I want to erase all of the canvas in JavaScript to draw a new one, what should I do?
<div class=myclass></div>How do we get the name of this class if we have this kind of div?
var newCodes = function() { var dCodes = fg.codecsCodes.rs; var dCodes2 = fg.codecsCodes2.rs; return dCodes, dCodes2;};I want to implement it like this, what should I do?
I want to keep the function called every five seconds to slide the image automatically.But I don't know what to do. It's an urgent matter, please help me.
I just want to get a number from the string Hello, I'm 24 years old in JavaScriptHow can you do that?
How do I convert decimal to hexadecimal in JavaScript?
I'd like to take a comma in a thousand digits when I print the integrer in JavaScript. For example,If you have 1234567, I want to print it out like 1,234,567 function numberWithCommas(x) { x = x.toStr...
I recently started maintaining someone else's JavaScript code. You want to fix bugs and add features to fix code more consistently. Previous developers defined code as a function in two ways. I was wo...
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