Math.min():查詢最小值

var myArray1 = [1, 5, 6, 2, 3];
var min1 = Math.min(...myArray1);

//console.log(min1),
//1

var myArray2 = [1, 5, 6, 2, 3];
var min2 = Math.min.apply(null, myArray2);
console.log(min2)
//1


function MyMin(myarr){
    var al = myarr.length;
    minimum = myarr[al-1];
    while (al--){
        if(myarr[al] < minimum){
            minimum = myarr[al]
        }
    }
    return minimum;
};
var myArray3 = [1, 5, 6, 2, 3];
var min3 = MyMin(myArray3);
console.log(min3)