To square a number in JavaScript do this:
Math.pow(number, 2).So, if your number is 5, then you can square it like so:
const myNumber = 5;
const square = Math.pow(myNumber, 2); // 25
Another way
Another way is to multiply the number by itself using the * operator:
const myNumber = 5;
const square = myNumber * myNumber; // 25