Find the maximum value in an array in JavaScript.

This program will teach us how to find the maximum value in a given array.

1. First Approach using for loop.

var arr = [111,113,14,12,15,0,1];
let max = arr[0];
for(let val of arr){
    if(val>max){
        max = val;
    }
}
console.log('Maximum value',max)

Output: 113

2. The second approach uses the sort method.

var arr = [111,113,14,12,15,0,1];
let newarr = [...new Set(arr)];
newarr = newarr.sort(function(a,b){ return a-b; }).reverse();
console.log('Maximum value is',newarr[0]);

Output: 113

3. The third approach uses the Math. max().

var arr = [111,113,14,12,15,0,1];
let newarr = [...new Set(arr)];
console.log('Maximum value is',Math.max(...newarr));

Output: 113