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
Suppose you create a service with the following URL:https://example.com/hoge-service/←This is the top screenhttps://example.com/hoge-service/favoritehttps://example.com/hoge-service/user/123456User Pa...
The goal is to make these codes work.At this stage, there is no problem if you allow certain tags to disappear.If possible, we would like to add additional registration function to the button that dis...
Cognito wants to implement the behavior of logging out and redirecting to the login screen with the authentication feature implemented on the application load balancer (hereafter ALB), but has a CORS ...
If the following budget (class=budget) exceeds the cost (class=cost), I would like to submit a decision (class=result) as over-budget in the decision (class reresult), but it doesn't work.I look forwa...
The javascript cannot read cookies written using document.cookie.The session can be read by console.log(document.cookie), but when I restart the browser(firefox), the result of console.log(document.co...
The direction I intend is as follows.However, when the code is executed, it seems that number 2, number 3, and number 4 are processed after calculating the prediction value of number 3.While calculati...
Creating part of file upload in Electron (v22). when going from render.ts to preload.ts to background.tsUncaught(inpromise)Error:An object could not be cloned.occurs in the render.ts part.I don't know...
I want to implement the ability to convert alphabetic characters to Morse symbols using javascript and htmlIf the value entered in the input tag in the code below matches the key in the associative ar...
I'm trying to use electron(v22)+Vue(v3) in JSON.An error occurs when attempting to parse the uploaded file to the JSON text file.I thought it might be because of a new line code or space, so I made a ...
I'm trying to use electron(v22)+Vue(v3) in JSON.An error occurs when attempting to parse the uploaded file to the JSON text file.I thought it might be because of a new line code or space, so I made a ...
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