Filter Out Strings from an Array

Imagine you are working on a data processing application that receives mixed data types in the form of arrays. Some of the data consists of non-negative integers, while other parts of the data are strings. For further analysis, you need to filter out all the strings from these arrays and only keep the non-negative integers.

Instructions:

• Write a function named filterArray that takes one parameter:

  • mixedArray: An array containing non-negative integers and strings.

• The function should return a new array that contains only the non-negative integers from the original mixedArray, with all the strings removed.

Note: Only use the map, filter, or reduce methods, or a combination of these methods, to solve the problem. Do not use loops to iterate or perform the operation.

Example 1

Input: filterArray([1, "a", "b", 0, 15]);
Output: [1, 0, 15]

Example 2

Input: filterArray(["apple", 3, "banana", 4, 5, "orange"]);
Output: [3, 4, 5]

Example 3

Input: filterArray(["hello", "world"]);
Output: []