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JavaScript (/ ˈdʒɑːvəskrɪpt /), often abbreviated as JS, is a programming language and core technology of the Web, alongside HTML and CSS. 99% of websites use JavaScript on the client side for webpage behavior. [10] Web browsers have a dedicated JavaScript engine that executes the client code.
The syntax of JavaScript is the set of rules that define a correctly structured JavaScript program. The examples below make use of the log function of the console object present in most browsers for standard text output. The JavaScript standard library lacks an official standard text output function (with the exception of document.write).
React was created by Jordan Walke, a software engineer at Meta, who initially developed a prototype called "F-Bolt" [ 45 ] before later renaming it to "FaxJS". This early version is documented in Jordan Walke's GitHub repository. [1] Influences for the project included XHP, an HTML component library for PHP.
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Unix time[a] is a date and time representation widely used in computing. It measures time by the number of non- leap seconds that have elapsed since 00:00:00 UTC on 1st January 1970, the Unix epoch. In modern computing, values are sometimes stored with higher granularity, such as microseconds or nanoseconds.
Print/export Download as PDF; Printable version ... text (date. format)) end end-- Using Date to get the current date, or current date and time. local function ...
ECMAScript version history. ECMAScript is a JavaScript standard developed by Ecma International. Since 2015, major versions have been published every June. ECMAScript 2024, the 14th and current version, was released in June 2024.
List of source code editors Editor Site Latest version Style, clone of Cost () Software license Open source Browser support Activity Ace: Home, demo: v1.4.12, 2020-7 : Sublime Text / Microsoft Visual Studio