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 am creating a Chrome App, but I would like to do something like right-click the menu like Chrome Dev Editor.What kind of event handling should I do to detect a right click?
There is a program that adds values to the beginning of the array.I want to limit the number to 10, but I don't know how to do it.What should I do?a=[1]a.unshift(2)//[2,1]...a.unshift(10)// [10,9,8,7,...
Textarea enables scrolling, so if the number of characters is large, the height of the textarea itself and the height of the contents will change.Is there a way to get the height of this content?
To run JavaScript for Chrome extensions, JavaScript runs faster in the site Is there a way to describe it first?For example, on a site like this, <body><divid=t>test</div><script&...
↑The image looks like thisjquery/jquery-ui is acceptable.input[type=text] and sample[mark] that informationHow do I retrieve it in the format Sample ?I was able to mark it and drag it, but I can't beh...
Textarea enables scrolling, so if the number of characters is large, the height of the textarea itself and the height of the contents will change.Is there a way to get the height of this content?
↑The image looks like thisjquery/jquery-ui is acceptable.input[type=text] and sample[mark] that informationHow do I retrieve it in the format Sample ?I was able to mark it and drag it, but I can't beh...
BLE CordovaPlugin (https://github.com/don/cordova-plugin-ble-central/blob/master/README.md)I am trying to develop an iPhone app with Monaca using .Run Environment: iPhone 5s (iOS7)If you set up the pl...
BLE CordovaPlugin (https://github.com/don/cordova-plugin-ble-central/blob/master/README.md)I am trying to develop an iPhone app with Monaca using .Run Environment: iPhone 5s (iOS7)If you set up the pl...
$.ajax({ url: '/ajax/', type: 'get', async —false, success:function(d){ console.log(d); },});
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