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
Environmentnuxt:2.8.1 node:12.5.0 npm:6.9.0 If you run npm run dev in and try to access it after building the server in local, the load icon keeps spinning and becomes inaccessible.The logs are as fol...
I am developing an Android app in monaca.I am creating a program that retrieves the update date of multiple files in a folder.As the callback works asynchronously, I would like to make sure that each ...
We are currently using Google apps script to create a code that reflects the value of the post form created in index.html in the Google spreadsheet.If you try to retrieve the selected value from the d...
What should I do if I want to implement the following?·Image upload·Arrange until the specified size (in XY direction)·Save as a single imageQuestion·After uploading the image, I think I saw an ImageM...
When I press the button, there is movement of the image, but the picture is not displayed.I'd like to have the image displayed.Thank you for your cooperation.Error document.addEventListener('DOMConte...
varkakunin=(function(){n= document.getElementsByClassName(js-validator-form);n[0].submit()}); setTimeout (kakunin, 2000);$('input[value=Are you sure? ] ).click();After executing the above code on a ce...
(function(){return;}());(function() {return;})();JavaScript: The Definitive Guide, 7th Edition listed the former code as an example of IIFE (simplified).However, JavaScript IIFE Use Case-Qiita or Thin...
If you use the code below to make the map an aerial photograph, there is no problem with longitude from Zoom, which is 45 degrees diagonally, not directly above, but the latitude is greatly shifted to...
I want to change what appears on hoge.com/hoge by retrieving information from the previous page or dynamically using some method.Examplehoge.com/hoge/1hoge.com/hoge/2hoge.com/hoge/3hoge.com/hoge/4 Vis...
I wanted to create an animation that would cause the current thing to collapse, so I combined the functions to rotate and fall, but after rotating, the animation is drawn separately.Could someone tell...
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