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 making LINE BOT with Bluemix and Nodejs, but I stumbled when I registered my IP in the whitelist on LINE side.As for Bluemix, it seems that the IP changes with each deployment, so I tried to fix ...
const color1=red $(`.shape${i}`).css(``background-color`,`${color1}`)I wrote that, but it doesn't work when I look at it in my browser.I googled a lot, but I couldn't find it.If you don't mind, I'd ...
Currently, you can use Google map api to view maps and markers.I would like to display a string (image of the information window) instead of a marker as a function I want to be realized.·Implemented m...
I'm stuttering at the text counter in the text area.I would appreciate your help.First of all, regarding the conditions, 1—Counts half-width as 0.5 and full-width as 1.02—Line feed, space not counted3...
As shown below, the css3 animation takes 1.7 seconds to enlarge the image in class=n1 by 1 to 1.5 times to fade out.I'd like to put a stop on this, but it doesn't work.After stopping class=n1 for 1 se...
I use niftymbaas and monaca to create apps.From niftymbaas side, we would like to display the link (http://×××.com) on the monaca app side so that it can be skipped to the link destination.Is it basic...
I heard that using virtual DOM is faster than working with real DOM.I don't really understand why it gets faster.When I hear the explanation that the difference is changed by comparing before and afte...
Currently, we are developing Chrome, which has enabled traditional browser add-ons from IE's screen, and transitioning to an external catalog screen with Chrome.We are communicating via POST, but we a...
I'd like to convert Float to X hours XX minutes or less in Javacript.1.2=>1 hour and 12 minutes1.211=>1 hour and 12 minutes1.11=>1 hour 06 minutes1.8=>1 hour 48 minutes1.89=>1 hour 53 m...
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