В
Array.prototype.map = (arr, callback, thisArg) => {
let i, length = arr.length, results = [];
for (i = 0; i < length; i = i + 1) {
results.push(callback.call(thisArg, arr[i], i, arr));
}
return results;
};
let i, length = arr.length, results = [];
for (i = 0; i < length; i = i + 1) {
results.push(callback.call(thisArg, arr[i], i, arr));
}
return results;
};
