| 1 |
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| 2 |
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| 3 | if (typeof Promise === 'undefined') {
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| 4 | require('promise/lib/rejection-tracking').enable()
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| 5 | window.Promise = require('promise/lib/es6-extensions')
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| 6 | }
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| 7 |
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| 8 | // Object.assign() is commonly used with React.
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| 9 | // It will use the native implementation if it's present and isn't buggy.
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| 10 | Object.assign = require('object-assign')
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| 11 |
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| 12 | // Support for...of (a commonly used syntax feature that requires Symbols)
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| 13 | require('core-js/es/symbol')
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| 14 | // Support iterable spread (...Set, ...Map)
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| 15 | require('core-js/es/array/from')
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| 16 |
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| 17 | // In tests, polyfill requestAnimationFrame since jsdom doesn't provide it yet.
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| 18 | // We don't polyfill it in the browser--this is user's responsibility.
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| 19 | if (process.env.NODE_ENV === 'test') {
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| 20 | require('raf').polyfill(global)
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| 21 | }
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