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Remove the Promise polyfill fallback so the promise package isn't bundled #57777

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Remove the Promise polyfill fallback so the promise package isn't bundled #57777

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9d38b80
Remove unused Promise polyfill and promise dependency
aravi365 Jul 31, 2026
57a8c2f
Narrow to removing only the polyfill fallback
aravi365 Sep 13, 2026
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8 changes: 2 additions & 6 deletions packages/react-native/Libraries/Core/polyfillPromise.js
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,9 @@

'use strict';

const {polyfillGlobal} = require('../Utilities/PolyfillFunctions');

/**
* Set up Promise. The native Promise implementation throws the following error:
* ERROR: Event loop not supported.
* Set up Promise. The engines React Native supports ship a native Promise, so
* it is no longer polyfilled here.
*
* If you don't need these polyfills, don't use InitializeCore; just directly
* require the modules you need from InitializeCore for setup.
Expand All @@ -33,6 +31,4 @@ if (global?.HermesInternal?.hasPromise?.()) {
require('../promiseRejectionTrackingOptions').default,
);
}
} else {
polyfillGlobal('Promise', () => require('../Promise').default);
}
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