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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | 1x 4x 4x 4x 4x 4x 4x 4x | export function once<T extends Function>(this: unknown, fn: T): T {
const _this = this;
let didCall = false;
let result: unknown;
return function () {
Iif (didCall) {
return result;
}
didCall = true;
result = fn.apply(_this, arguments);
return result;
} as unknown as T;
} |