JavaScript: Two sum problem

let startTime, endTime let integerArr = [1, 2, 8, 4, 5, 18]; let targetNum = 19; function twoSumMethod1 (integerArr, targetNum) { let condition = false; for (let i = 0; i < integerArr.length; i++) { for (let j = 0; j < integerArr.length; j++)...