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ArrayMap.ts

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export function __TS__ArrayMap<T, U>(

this: T[],

callbackfn: (value: T, index?: number, array?: T[]) => U,

thisArg?: any

): U[] {

const result: U[] = [];

for (const i of $range(1, this.length)) {

result[i - 1] = callbackfn.call(thisArg, this[i - 1], i - 1, this);

}

return result;

}