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 have a question about javascript,html.I would like to reflect the return value of the date function that displays the date in the code below.$(#board).prepend(<licclass='board'>+data.value.mes...
The two line graphs show this year's sales and last year's sales.$xlabelThis='20/03', '20/04', '20/05', '20/06';$xlabelLast='19/03', '19/04', '19/05', '19/06';One line graph uses $xlabelThis declared ...
https://moripro.net/gas-twitter-bot/In the middle of writing the code to tweet from GAS using this as a reference, The success screen came out after the authentication, but when you run the tweet test...
I usually use simple jQuery, but I always stumble when it gets complicated.Please tell me how to make it possible to achieve the following actions.I was able to do the 3rd above, While the image is fo...
What do you want to do in the end (overview)I want to automate Image Editing using JavaScript (with canvas tag)*Batch processing in Windows environmentWhat you want to do in the end (process flow)1. P...
I want to make a software keyboard that is easy to write programming on the iPad.I can make a software keyboard with HTML and JavaScript, but I would like to use that keyboard on my iPad.The software ...
With Poltergeist, the behavior of the Capybara test case is strange.First of all, if you don't use Poltergeist, the Capybara test case is success.before {create(:user)}it's test'do visit root_path exp...
I'm a beginner.I'm using the js code as a bookmarklet, but I'm having trouble with the second line of clicking on the button.When I looked up the elements in the developer tool, it says name=#btnAAAA0...
In unity5, when I press +10 and -10 when I press +10 when I press +10 on the keyboard arrow key 」→ 。, I want to write something that moves to -10, but I don't know how to do itfunctionUpdate(){ varx: ...
In javascript, open the child window from the parent window and focus() into the parent window.At this time, you are looking for a way to keep the child window on the front.The browser is IE11.Specifi...
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