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
Do you want to improve this question?Edit this post and update the question to focus on one issueClosed 6 years ago.6 years agoWhat can I do with HTML+JavaScript?Can you make Android apps and iOS apps...
I have implemented it by referring to the code below.https://github.com/siguremon/calendarclone/blob/master/app/assets/javascripts/calendar.jsHowever, due to the old version, the following version is ...
I'm a beginner at jquery.I'm very sorry, but could you tell me the meaning below?fields.eq(index+(event.shiftKey?(index>0?-1:0):(index<total?+1:total)) .focus();
Create a json called Employee on the server, pass the data to the screen as shown below, and I'd like to get this data-employee from Knockout.js and display the edited data from Knockout.js in the tab...
How can I select a dynamically generated DOM when I can't select it with my mouse?For example, in the recent PC version of Twitter, if you hover your mouse over the link to someone else's account name...
I made an accordion for the sidebar.However, if you display the accordion as it is, the table in the body (the one that says row 1 row 2) will shift to the right.Instead of sliding to the right, I wou...
Should I use setTimeout to handle heavy tasks when the following actions occur?$( document ).bind(keydown keyup, function(e){ if(e.type===keydown){ ... // Heavy handling } if(e.type===keyup){ ... //...
Currently, we use bower and cdn.rawgit.com to publish a library of javascripts, such as:https://github.com/59naga/victorica#readmeIn this way, you will manage deliverables (victorica.min.js) on github...
I don't like html, especially those who don't know how to call java scriptIn index.html, <!DOCTYPE HTML><html><head> <metacharset=utf-8> <meta http-equiv=Content-Security-Po...
I somehow understand that it is the standard specification of javascript.Is javascript implemented for each browser? What is the ECMAScript version of javascript running in a browser these days?For ex...
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