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'm a beginner at js.using HTML5 canvasDecorate the loaded image with some kind of decoration (draw text on the image with fillText, etc.) and I would like to write it out in a format such as png per ...
Sample Redux code.React-router was introduced in async.However, when I created index.js and routes.js as follows, the componentDidMount of containers/App.js was not called and the View disappeared.Do ...
I would like to put the appropriate variable name in the value below.Requirements are listed at the bottom.var value=1000;// Thisif(cart.totalPrice<value){ handlingCharge = 100;}The processing is t...
When using Inappbrowser, I don't know how to implement:Please let me know.·How to display the header part of the lower layer surface ·How to display the footer prepared by the app after displaying itI...
I would like to run the following Javascript in the webview in the UIButton written in Swift, but could you help me?Javascript sidefunction show() { alert(Run JavaScript;←I want to do this on Swift }S...
Could you give me a javascript showing only the year in the Japanese calendar? document.write(date.toLocaleDateString(ja-JP-u-ca-Japanese));I thought so, but I don't think so.Thank you for your cooper...
Using JavaScript to access a file on a server and create a program to open it in the client's exe.It works as expected, but the notification bar of the browser (IE9) appears when I access the file on ...
Monaca has completed console.log (Post Completed) but After-processing, I didn't understand the part of the JSON converted php sentence (displaying the contents of DB) on the Monaca screen in Javascri...
I want to utilize the spreadsheet as a DB.I would like to search by putting a value in index.html's [selectindex] and display the results in [text1], [text2], but it doesn't work as well as I want.I w...
Currently, we are creating Chrome extensions that detect script codes that send information secretly on web pages.In addition, what are some ways to send information to the server in JavaScript withou...
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