API reference › @evolu/common › Polyfills › installPolyfills

function installPolyfills(): void;

Defined in: packages/common/src/Polyfills.ts:35

Installs polyfills required by @evolu/common.

Installs:

  • Resource-management polyfills (Symbol.dispose, Symbol.asyncDispose, DisposableStack, AsyncDisposableStack, and SuppressedError) for Safari and React Native
  • Map and WeakMap upsert polyfills (Map.prototype.getOrInsert, Map.prototype.getOrInsertComputed, WeakMap.prototype.getOrInsert, and WeakMap.prototype.getOrInsertComputed) for Node 24 and React Native

The polyfills are implemented directly in the Evolu Library instead of being third-party runtime dependencies. We audit their behavior against specifications, conformance tests, and native implementations, and fix issues when necessary. This lets Evolu understand and control every line of this runtime code.

@evolu/react-native has its own Polyfills module and its installPolyfills calls this function first, then installs React Native specific polyfills.

Call this explicitly from the app entry point.

See

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