The conversation between human and AI assistant.
[|Human|] Identify the prototype of this function.
[|AI|] The prototype of the `sortNumbers()` function is `Array.prototype.sort()`. This function sorts the elements of an array in place and returns the sorted array. In the given `sortNumbers()` function, `arr.sort()` method is used to sort the numbers in the `arr` parameter in ascending order. Inside the `sort()` method, a compare function is used to determine the sort order of the elements.
[|Human|] 
Identify the prototype of this function.