Write the function appendEvens() which, given two arrays, adds all of the even elements from the first to the second. You may assume the second has enough space.

function appendEvens( arr1, arr2) {

   for (let i in arr1){

       if (i%2 == 0){

           arr2.push(i);

       }

   }

}

Explanation:

The defined javascript function "appendEvens" is a function that returns undefined. It accepts two arrays and pushes the even numbers from the first array to the second.

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