指数运算符 指数运算符 ES2016 新增了一个指数运算符（** ）。 2 ** 2 // 4 2 ** 3 // 8 这个运算符的一个特点是右结合，而不是常见的左结合。多个指数运算符连用时，是从最右边开始计算的。 // 相当于 2 ** (3 ** 2) 2 ** 3 ** 2 // ...

@babel/preset-stage-3 Install Usage Via .babelrc (Recommended) Via CLI Via Node API Options loose useBuiltIns References @babel/preset-stage-3 As of Babel v7, all the ...

20. JSON superset Please support this book: buy it or donate 20. JSON superset This chapter covers the ES2019 feature “JSON superset ” by Richard Gibson) is at [stage 4](...

Plugins Transform Plugins ES3 ES5 ES2015 ES2016 ES2017 ES2018 Modules Experimental Minification React Other Syntax Plugins Plugin/Preset Paths Plugin Shorthand Plugi...

Plugins Transform Plugins ES3 ES5 ES2015 ES2016 ES2017 ES2018 Modules Experimental Minification React Other Syntax Plugins Plugin/Preset Paths Plugin Shorthand Plugi...

Plugins Transform Plugins ES3 ES5 ES2015 ES2016 ES2017 ES2018 Modules Experimental Minification React Other Syntax Plugins Plugin/Preset Paths Plugin Shorthand Plugi...

Plugins Transform Plugins ES3 ES5 ES2015 ES2016 ES2017 ES2018 Modules Experimental Minification React Other Syntax Plugins Plugin/Preset Paths Plugin Shorthand Plugi...

Objects Properties and ... Objects Properties and ... As we saw in the “Too Many, Too Few, Just Enough” section of Chapter 2, the ... operator is pretty obvious in how it re...

Transform Plugins ES3 ES5 ES2015 ES2016 ES2017 ES2018 Modules Experimental Minification React Other Syntax Plugins Plugin/Preset Paths Plugin Shorthand Plugin Orderi...

Install Usage Via .babelrc (Recommended) Via CLI Via Node API Options loose useBuiltIns References As of Babel v7, all the stage presets have been deprecated.Check the bl...