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
<%@ page language=java contentType=text/html; charset=UTF-8 pageEncoding=UTF-8%><!DOCTYPE html PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN http://www.w3.org/TR/html4/loose.dtd><html&g...
I'd like to add a text message in between What should I do?I want to add it like this I tried to use document.getElementById() in JavaScript, but I don't know what to do because there is no id value.
While practicing membership, look at the examples and process ID exceptions (only English characters and numbers are allowed)for(var i = 0; i='0' && ch <='9') && !(ch>='a' &&...
Hello, I started shoveling, so I'm uploading it. ㅠ
Using the class attribute, I solved the practice problem that the menu bar appears and disappears when I press the button, but if I press the button, it works at first, but it doesn't work next timeWh...
Failed to favicon.ico:1 load resource: the server responded with a status of 404 (Not Found)I get this error ㅜ요What error is that?
I'd like to implement the same function as in the picture above.I'm trying to implement function number 2, but I don't know how to do it. I'd like some advice.
console.log(r[a][b]);if(r[a-1][b-1] != '-' && r[a-1][b-1] != '+' && r[a-1][b-1] != '*' && r[a-1][b-1] != '#') r[a-1][b-1] -= Q;When I tried to execute it with the relevant cont...
Currently, if you select the weather api and get it, you can get it.How can I get it to run automatically on the server once a day?
Currently, we are trying to draw a polygon with javascript through the following map api and find the center point of that polygon.I've done drawing a polygon.I'm struggling to find the center point o...
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