developer.mozilla.org sample code let arr1 = [1,2,3,4,5] console.log(arr1.reduce((a, b) => { return a + b })); // sum:15 console.log(arr1.reduce((a, b) => { return a > b ? a : b})); // max:5 console.log(arr1.reduce((a, b) => { return a < b…