typedash/dist/once-Dmdw8JVT.cjs

modern, type-safe collection of utility functions

//#region src/functions/once/once.ts
/**
* Invokes the given function only once, no matter how many times it's called.
* If it was already invoked before, returns the result from the first invocation.
* @template TFunction The type of the function to be invoked.
* @param fn The function to be invoked.
* @returns The result of the first invocation of the function.
*/
function once(fn) {
	let result;
	let hasBeenCalled = false;
	return ((...args) => {
		if (!hasBeenCalled) {
			result = fn(...args);
			hasBeenCalled = true;
		}
		return result;
	});
}

//#endregion
Object.defineProperty(exports, 'once', {
  enumerable: true,
  get: function () {
    return once;
  }
});
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