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
How do I write the code to use the variables I used in ClassA in JavaScript in ClassB?class A { constructor{ This.A }}classB{ constructor{ This.B } method{ // I want to use classA constructor varia...
At the time of scrolling the page, the object is moved and transmitted according to the scrolling distance.I would also like to know a concise example of the parallax effect.
What do you want to solveI am creating a todo app in vue.js, but I would like to be able to edit the todo that I created.Problems/errors encounteredI tried many things.There are currently no errors, b...
The development environment is server OS:Raspberry Pi OSserver side:Python(Django)client side:HTML+JavaScriptYou are creating a website that requires password login.If the operation is not performed f...
We are currently trying to get the url of thumbnails from the RSS of Tena Bookmark using regular expressions.<!DOCTYPE html><head> <metacharset=utf-8></head><body><div...
We are developing Evernote apps based on HTML5+Javascript on the monaca platform.Implemented by referring to the GitHub sample code that was linked from above Evernote's website.https://github.com/eve...
I use WordPress to build a corporate site.I'd like to create a store search function like foodpanda.co.jp.I searched the plug-in, but I couldn't find a way to do that.Does anyone know how to do that?T...
I'd like to do a reverse lookup from my browser. Is there any way?Ideally, I wish I could type a Dig command directly from JavaScript, but is there such a function in JavaScript?Other than that, I can...
I'm making an app. When I log in to the server, I use the user's name and password, but it's annoying to enter the password every time, so I made a password as an option.I tried to use SharedPreferenc...
I would like to make something that moves, edits, and saves stencils and letters on the web screen as shown below.I looked for similar open sources and opened the sources of each service, but I can't ...
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