Find smallest value in Array without Math.min

Question

How can I find the lowest number in an array without using Math.min.apply?

var arr = [5,1,9,5,7];

const smallest = Math.min(...[5,1,9,5,7]);

console.log({smallest});

//old way
const smallestES5 = Math.min.apply(null, [5,1,9,5,7]);

console.log({smallestES5});

Answer 1

If you must use a for loop:

var arr = [5,1,9,5,7];
var smallest = arr[0];

for(var i=1; i<arr.length; i++){
    if(arr[i] < smallest){
        smallest = arr[i];   
    }
}

console.log(smallest);

Answer 2

Now when look at my own question.. it looks so silly of me.

Below would be perfect solution to find the smallest number in an array:

By default, the sort method sorts elements alphabetically. To sort numerically just add a new method which handles numeric sorts

var arr = [5, 1, 9, 5, 7];

var smallest = arr.sort((a, b) => a - b);

alert(smallest[0]);

Answer 3

just sort the array and take the first value, easy.

if you must use a for loop:

var arr = [5,1,9,5,7];
for (var i=0; i<1; i++) {
    arr.sort();
}
return arr[0];