Problem

Given an array of integers, return the sum of the integers that are greater than or equal to 10.
Example input: [2, 12, 9, 15, 20]
Example output: 42

Solution

// Solution:

function sumOfTen(arr) {
  let sum = 0;
  for (let i = 0; i < arr.length; i++) {
    if (arr[i] >= 10) {
      sum += arr[i];
    }
  }
  return sum;
}

// Explanation:
// This solution is optimal because it uses a for loop to iterate through the array and check if each element is greater than or equal to 10. If it is, it adds it to the sum. It then returns the sum.