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 put the values I got by hitting the API in the array and take them out at any time. const http=axios.create({ baseURL: 'base-url',})vara = [ ]function addArray() { http.get('/hoge/fuga', {da...
What do you want to hearI would like to use axios to get JSON from the API server in Heroku.The following error occurred and I cannot...The API server side and client side have not been able to isolat...
Let me ask you a question.I'm building a slot machine with Javascript.I don't know how to make the final around or missing decision.Please tell me who it is.javascript// Control the left reelfunction ...
Global chat on Node.js discord.js (I want to do something that says a on Channel B of A mackerel and a on Channel D of C mackerel, but I can't do it well.Please tell me what's wrong.Code I tried makin...
I'm trying to update the display using Vue's monitoring properties, but when I change the text in input, the {{newMessage}} and {{oldMessage}} parts below are not updated. ({{message}} parts are updat...
I am running JavaScript which is located on the rental server, and I would like to print the value obtained by running JavaScript to the log on the server.As it is a rental server, there are restricti...
I would like to use Thymeleaf in the JavaScript code in HTML.The source code is as follows:More specifically, ${i} is specified in Thymeleaf, so I would like to refer to the contents of the i variable...
In order to prevent the display of the same feature in the system in more than one tab window, we are implementing the following actions:同 When the second tab is opened with the same function ②US>Show...
$(function(){ // initial open-close state setting $(.accordionbox dt) .filter((i,e)=>isActive($(e).next())) .each(i,e)=>toggle($(e))); $(.accordionbox dt).on(click, function(){ toggle($(this)); ...
I don't know where the error is in Javascript, so I would like to implement try catch.I would appreciate it if you could tell me a simple try catch.Thank you for your cooperation.
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