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
When checking your browser, If the browser version is the same, do I have to worry about the OS version difference?If so, what kind of checks do you need?The details of the check are as follows.·Check...
I am writing an ec site, but Ajax support is not going as well as I would like, so I would like to ask you a question.I would like to use Ajax to switch between favorites and favorites, but I am curre...
Multilingualize HTML pages and English http~.comJapanese version of http~~.com/ja/This is the configuration.However, when I search in Japanese, the title of the English version becomes a hit.Alternate...
If you try to display the code surrounded by [js][/js], it will be covered in blocks.<div>// String</div><div>vars=new String('taguti')</div><div>vars='taguti'// string l...
I am using the onsen-UI.I am using Visualstudio.The UI slide menu or hamburger? icon can move and shift pages normally.However, the click and sensor parts do not work as shown in the source below.I ha...
Hello, this is my first post.I am studying Polymer now.As part of my learning, I am creating an app with and using iron-ajax to retrieve data from json.Therefore, I am wondering if I can pass the json...
I have found a sample code that displays an alert screen after a set time, but how do I rewrite the code to make a sound?The sample code is from the following site.http://www.pori2.net/js/timer/6.html...
Regular expression apostrophei also want to match as part of the string. In relation to , I can now escape the single quote with the following code:However, on repl.it, which I use,/[w']+/g ['Hell\'o'...
This is part of what was written, but Isn't there a tool to decipher this?I've already tried a website that can be decoded, but it's only a new line It didn't seem to be able to decipher And this is t...
I'd like to watch the store value, but the error: [vuex] store.watch only accept a function.I referred to this site.https://codepen.io/CodinCat/pen/PpNvYrIf I have more than one store, how do I watch ...
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