Question

Is it possible to sort arrays in ascending/descending order using the for loop JavaScript?

I’ve been learning JS going through a few practice questions in a textbook before a class test.

Any pointers would be appreciated!

a = Number(prompt("a:"));
b = Number(prompt("b:"));
c = Number(prompt("c:"));
d = Number(prompt("d:"));
e = Number(prompt("e:"));

// find largest element
var test = [a, b, c, d, e];
var biggest = -Infinity;
var biggest_index = -1; {
    for (i = 0; i < test.length; i++) {
        if (test[i] > biggest) {
            biggest = test[i];
            biggest_index = i;
        }
        else;
    }
    alert("The biggest element is " + biggest + " at index " + biggest_index);
}

// move largest element of array to the last index
test[test.length] = biggest;

// get rid of copy
test[biggest_index] = 0;
alert("Unsorted: " + test);

// shuffle ??

Answer 1

If you want to get the max/min number in an array, why not use Math.max/Math.min?

If you want to sort the array, you can use sort method:

var sorted = [3, 1, 6, 2].sort(); // sort ascending  
var sorted = [3, 1, 6, 2].sort(function(a, b){
    return b - a;
}); // sort descending