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Update README according to new useBuiltIns values. (#288) [skip ci]

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Artem Yavorsky 2017-04-14 15:43:30 +03:00 committed by Henry Zhu
parent 1e11a32c44
commit 64cfc43883
1 changed files with 2 additions and 2 deletions
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4
experimental/babel-preset-env/README.md
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@ -178,7 +178,7 @@ This option is useful for "blacklisting" a transform like `transform-regenerator
### `useBuiltIns`
`boolean` | `"entry"`, defaults to `true`.
`"usage"` | `"entry"` | `false`, defaults to `false`.
A way to apply `babel-preset-env` for polyfills (via `babel-polyfill`).
@ -186,7 +186,7 @@ A way to apply `babel-preset-env` for polyfills (via `babel-polyfill`).
npm install babel-polyfill --save
```
#### `useBuiltIns: true`
#### `useBuiltIns: 'usage'`
Adds specific imports for polyfills when they are used in each file. We take advantage of the fact that a bundler will load the same polyfill only once.