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
I want to give you an alert when the user goes back in the web browser.How can I detect it when I go backwards?
I'm a beginner who just started studying JavaScript. You'll find out later, but I'm asking you a question here because I'm curious. I added javascript to html file and wrote the following code as belo...
I want to set the width of each of the items in the table and use it. I want to use columns, but I want to adjust the width only. layout: { type: 'table', columns : '3', }, items : [ { ...
You can see and not see elements in jquery with a .hide(), .show(), or .toggle(). Then, how do I know if I can see the element now or not by using jquery?
What is the best way to make a clipboard copy in a multi-browser environment?function copyToClipboard(text) { if (window.clipboardData) { // Internet Explorer window.clipboardData.setData(Text, text)...
In Java, there's the same for syntax at the bottom. String[] myStringArray = {Hello,World};for(String s : myStringArray){ //Do something}Is this not available in JavaScript?
How do I get the current date from JavaScript?
How do I check if it is a mobile device in jQuery?
I'd like to compare the two dates using JavaScript. I don't know what to do.Can someone explain it to me?
For example, if you add an element with .append(), how do you check if this element exists?`$('elemId').I did it with length, but it doesn't work.
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