Get total, max and min number from an array of numbers: var numArr = [17,18,19,20,53,65,78,99,12,35]; var total=0; numArr.forEach(function(d,k){ total += d //or total = totl + d }); console.log(total); // 416 Finding max: Math.max(...numArr); OR console.log(Math.max.apply(null, numArr)); Finding minimum: Math.min(...numArr) console.log(Math.min(...numArr)); or Math.min.apply(null, numArr); console.log(Math.min.apply(null, numArr));