Return Only Strings

Q. Create a function that takes an array of non-negative integers and strings and return a new array without the strings.

const filterArray = function(arr) {
 console.log(arr.filter(arr => typeof arr === 'number'));
}
filterArray([1, "2", "a", 3]); // should be [1, 3]

1. Extract elements and create a new array with filter() method.
2. Add condition with typeof operator, the element should be extracted when it is number.