INNER CODE UNIT · TypeScript

runOnce

terrysahaidak/react-native-gallery-toolkit · packages/common/src/common.ts:99

export function runOnce(fn: Function) {
  const ref = useRef<null | true>(null);

  if (!ref.current) {
    fn();
    ref.current = true;
  }
}

export function assertWorkletCreator(packageName: string) {
  return function assert(fn: (...args: any[]) => any) {
    // @ts-expect-error
    if (!fn.__worklet)
      throw new Error(
        `${packageName}: ${fn.name} change should be a worklet. Did you forget to add "worklet" directive?`,
      );
  };
}

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