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next.js/examples/with-configured-preset-env/pages/index.js
Tom MacWright 559c25253e Configurable opts for babel-preset-env + babel-plugin-transform-runtime (#2991)
* Configurable opts for babel-preset-env + babel-plugin-transform-runtime

This adds `preset-env` and `transform-runtime` options to the
`next/babel` Babel preset, which are then passed through to those
presets and transforms. This allows configuration to keep next.js
from the default 'maximum' transform, and instead use built-in
implementations of globals, classes, async, and other commonly-supported
features.

Fixes #2989

* Use spread notation instead of Object.assign
2017-10-07 08:38:59 +02:00

22 lines
371 B
JavaScript

import {Component} from 'react'
function * generatorMethod () {
yield 1
}
async function fooBar () {
for (let val of generatorMethod()) {
return val
}
}
export default class Index extends Component {
async otherMethod () {
await fooBar()
}
render () {
const foo = new Map([['cats', 'dogs']])
return <h1>Garbage {foo.get('cats')}</h1>
}
}