Shulou(Shulou.com)06/02 Report--

This article is about how VSCode converts ES6 to ES5. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

How does VSCode convert ES6 to ES5?

VSCode cannot convert ES6 to ES5, but it can be implemented through the Babel library. Babel is a tool chain that is mainly used to convert the ES5+ version of code into a backward-compatible JavaScript syntax so that it can run in current and older browsers or other environments.

Example

/ / Babel input: ES2015 arrow function [1,2,3] .map ((n) = > n + 1); / / Babel output: equivalent function implemented by ES5 syntax [1,2,3] .map (function (n) {return n + 1;})

History of ECMAScript

ES6 is the most changed version of the ECMAScript standard in more than a decade, adding many new syntax features to it.

ECMAScript 1.0 was born in 1997.

ECMAScript 2.0 was born in June 1998 with a few minor changes to synchronize independent ISO international standards.

ECMAScript 3.0 was born in December 1999. it was a great success and was widely supported in the industry. it laid the foundation for the basic syntax of JS and was completely inherited by subsequent versions. Until today, when we first started learning JS, we were actually learning version 3. 0 grammar.

ECMAScript 4.0 in 2000 is the predecessor of the current ES6, but because this version is too intense, it has been completely upgraded to ES 3, so it has been "harmonious" temporarily.

In December 2009, ECMAScript version 5.0 was officially released. The ECMA expert group expects the fifth version of ECMAScript to become the mainstream development standard from mid-2013 to 2018. In June 2011, ES version 5.1 was released and became an international standard for ISO.

In 2013, the draft of ES6 was frozen, no new functions were added, and new functions will be put into ES7; in June 2015, ES6 was formally adopted and became an international standard.

Thank you for reading! This is the end of the article on "how VSCode converts ES6 to ES5". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.