JAVASCRIPT

how to square a value in javascript

// Use Math.pow(a,b); where a is your value and b is the exponent
var num = Math.pow(4, 2);
//num returns 16

how does square root work javascript

let sqrt = (c, depth = 100, x = 1) =>
    depth <= 0 ? x :
    sqrt(c, depth - 1, x - (Math.pow(x, 2) - c)/(2*x))

console.log(sqrt(2));