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'm learning about Javascript event listeners.If you say click_01(), click_02(), click_03(), as shown in the source code below, the button is clicked without pressing the button.Why?<body><in...
Using googlemapsAPI to view clusters.I want to change the icon when I click on the cluster, but it doesn't change.I am referring to the following.https://googlemaps.github.io/v3-utility-library/classe...
I am creating a SPA with Onsen UI (v2 series).I'm building it without using frameworks like Angular or Vue.When I click on ons-list-item, I want to transition to hoge.html and return to index.html wit...
I use Onsen UI and JavaScript templates to create SPAs in monaca.When I transition pages with pushPage, I want to prepare another html file and use a template similar to index.html for that file, but ...
Uncaught SyntaxError: Unexpected token ':'There is...I don't know why it's an error.I think I made a mistake on JS.<script> function createLink(){ const div3 = document.getElementById(div3); i...
I would like to use jQuery Rate (http://wbotelhos.com/raty) to give a five-step rating to the form of posting a review of a book.<form action=review.php method=post> <label class=control-labe...
I am developing a notepad app at Monaca.I am creating a notepad app with the following description, but I would like to add a function that allows me to share the contents of the saved notes on Twitte...
I am currently working on implementation with next.js, but as mentioned above, I would like to manage the check status of multiple check boxes with state, and if I press the button on a different comp...
html<a href=hoge>1</a><a href=huga>2</a><a href=hogehoge>3</a><a href=hugahuga>4</a>jquery$('a').onAttr('href', 'hoge'); // 1 jquery object$('a').onAttr...
!function(d,s,id){}( document, 'script', 'twitter-wjs');This is part of Twitter's share button code.Also, what happens if I write this in coffeescript?
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