Babel (transcompiler)

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Babel
Babel Logo
Original author(s)Sebastian McKenzie
Developer(s)Contributors
Initial releaseSeptember 28, 2014; 7 years ago (2014-09-28)[1]
Stable release
7.13.14 / March 29, 2021; 6 months ago (2021-03-29)[2]
Repository
Written inJavaScript
Operating systemLinux, macOS, Solaris, FreeBSD, OpenBSD, AIX, Microsoft Windows
TypeCompiler
LicenseMIT[3]
Websitebabeljs.io

Babel is a free and open-source JavaScript transcompiler that is mainly used to convert ECMAScript 2015+ (ES6+) code into a backwards compatible version of JavaScript that can be run by older JavaScript engines. Babel is a popular tool for using the newest features of the JavaScript programming language.[4]

Developers can use new JavaScript language features by using Babel to convert their source code into versions of JavaScript that Web browsers are able to process.[5] The core version of Babel was downloaded 5 million times a month as of 2016, increasing to 16 million times per week as of 2019.[6][7]

Babel plugins are used to transform syntax that is not widely supported into a backwards-compatible version. For example, arrow functions, which are specified in ES6, are converted into regular function declarations.[8] Non-standard JavaScript syntax such as JSX can also be transformed.[9][10]

Babel can automatically inject polyfills provided by core-js[11] for support features that are missing entirely from JavaScript environments. For example, static methods like Array.from and built-ins like Promise are only available in ES6+, but they can be used in older environments if core-js is used.

See also[edit]

References[edit]

  1. ^ "first commit". Babel Github. Retrieved 2021-01-26.
  2. ^ "Babel Latest Release". Retrieved 29 March 2021.
  3. ^ "babel/LICENSE at master". GitHub. Retrieved 12 May 2018.
  4. ^ "Technology Radar | Emerging Technology Trends for 2017 | ThoughtWorks". www.thoughtworks.com. Retrieved 2018-05-12.
  5. ^ "Why Babel Matters | codemix". codemix.com. Retrieved 2018-05-12.
  6. ^ "The State of Babel · Babel". babeljs.io. Retrieved 2018-05-12.
  7. ^ "Babel's Funding Plans · Babel". babeljs.io. Retrieved 2020-08-01.
  8. ^ "Plugins · Babel". babeljs.io. Retrieved 5 July 2019.
  9. ^ "Introducing JSX - React". reactjs.org. Retrieved 2018-05-12.
  10. ^ "Using React and building a web site on Azure". Microsoft Faculty Connection. Retrieved 2018-05-12.
  11. ^ "core-js".

External links[edit]