feat: proposal supported

Jamie-Yang · Jamie-Yang · commit ba9849193d15 · 2021-01-08T00:13:51.000+08:00
diff --git a/babel.config.js b/babel.config.js
@@ -3,12 +3,14 @@ module.exports = {
     [
       '@babel/preset-env',
       {
-        useBuiltIns: 'usage',
-        modules: false,
-        corejs: 3,
+        useBuiltIns: 'usage', // adds specific imports for polyfills when they are used in each file.
+        modules: false, // preserve ES modules.
+        corejs: { version: 3, proposals: true }, // enable polyfilling of every proposal supported by core-js.
       },
     ],
   ],
-  plugins: ['@babel/plugin-transform-runtime'],
+  plugins: [
+    '@babel/plugin-transform-runtime', // enables the re-use of Babel's injected helper code to save on codesize.
+  ],
   exclude: [/core-js/],
 }

Original file line number	Diff line number	Diff line change
`@@ -3,12 +3,14 @@ module.exports = {`
`3`	`3`	`[`
`4`	`4`	`'@babel/preset-env',`
`5`	`5`	`{`
`6`		`- useBuiltIns: 'usage',`
`7`		`- modules: false,`
`8`		`- corejs: 3,`
	`6`	`+ useBuiltIns: 'usage', // adds specific imports for polyfills when they are used in each file.`
	`7`	`+ modules: false, // preserve ES modules.`
	`8`	`+ corejs: { version: 3, proposals: true }, // enable polyfilling of every proposal supported by core-js.`
`9`	`9`	`},`
`10`	`10`	`],`
`11`	`11`	`],`
`12`		`- plugins: ['@babel/plugin-transform-runtime'],`
	`12`	`+ plugins: [`
	`13`	`+ '@babel/plugin-transform-runtime', // enables the re-use of Babel's injected helper code to save on codesize.`
	`14`	`+ ],`
`13`	`15`	`exclude: [/core-js/],`
`14`	`16`	`}`