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 just posted it on Yahoo! Chiebukuro and Qiita, but I think I can hear more about it, so I posted it again.What is the best library to draw a network diagram like the one below?I am thinking of JavaS...
I'd like to use components using .vue.I need to install a noscript tag due to the installation of a measuring tag, but is it possible to install a noscript tag within .vue?
If you open a new window in JavaScript's window.open(), do you have any standard specifications for whether the session will be taken over?Or do you decide on your own for each browser?Let's make the ...
I am studying jQuery/javascript.Thank you.I would like to use the keyword digest function of Amazon.co.jp in the text box.I looked it up and found out that Implement the Amazon/Google Suggest feature ...
Note: Self-resolved <!DOCTYPE html><html lang=ja><head> <metacharset=UTF-8> <title>My Vue.js Practice</title></head><body> <divid=myCounter> <d...
I built a site with Wordpress, set Infinite Scroll on JetPack, and view the summary of each article on the front page, but when I scroll from the first 7 articles and read the next 7 articles, the SNS...
I would appreciate it if you could give me some advice.The implementation below is Swift, but any language is fine.It is implemented to determine the correct time from 12:00 to 11:00 if the time hand ...
When I copied the code to send Gmail from the GAS code that I was able to execute before, I encountered a transmission error.The code is as follows:function send_mail(){ var recipient='recipient@examp...
Hello, I am currently creating a web page in JavaScript.I want to start Outlook when I press the button (just launch exe, not create a new mail), but I am having trouble.When I press the button with t...
at the site you are building with JavascriptI would like to ask you a question because I do not know the cause.List the table data in your browser and If you change the value in the pull-down selectio...
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