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 am learning Javascript.I think there are several ways to write, but the general way to write is Which of the following two types is the mainstream?(Is there any other way to write?) Also, are there ...
Thank you for your cooperation.Basically, it is as the title says.In detail, I would like to receive a zip file on my browser, unzip it on JS, save the image data inside to localStorage, and use it by...
I would like to get the check box value in JavaScript as shown below, but if I get it with val(), it will turn on.Also, I thought about how to get the value by .prop('checked'), but I want to determin...
ChallengesThe rails app is implementing Google Maps, but it does not appear in the browser.I want to be able to display it somehow.Problems/errors encounteredI can't see the google map in my browser.S...
I wrote the following code because I wanted to create an event when I clicked on the seek bar in a scene like the image, but it doesn't work well.Is there a way to generate an event when clicking Seek...
What do you want to doI want to automate the reflection in the browser after installing gulp and compiling sass, but it doesn't work well.Please give me some advice.Problems you are havingIt works unt...
How do I get the dragable element in jquery-ui?<div class=draggable>1</div><div class=draggable>2</div><div class=draggable>3</div><div class=draggable>4</...
If you use XML::LibXML::Reader in perl, you can analyze XML by retrieving nodes from the top, but what should you do with javascript (or jQuery, etc.Or is there a library that can do the same thing?
I am reading the jQuery plug-in written in CoffeeScript, but I do not understand the description of @.What does it stand for?self=@Also, what does @ mean in Javascript and jQuery?Even if I look for it...
function addMessage(value,color,size){ varcanvas= document.getElementById(picture); varctx=canvas.getContext(2d); var image = new Image(); variable image.src="data:image/jpg;base64,+window.bt...
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