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// https://www.ecma-international.org/ecma-262/10.0/index.html#sec-array.prototype.find export function __TS__ArrayFind( this: T[], predicate: (value: T, index: number, obj: T[]) => unknown, thisArg?: any ): T | undefined { for (const i of $range(1, this.length)) { const elem = this[i - 1]; if (predicate.call(thisArg, elem, i - 1, this)) { return elem; } } return undefined; }