Math Object

Object properties can be assigned to functions, and these functions can take arguments. Here's the start of a MyMath object:

var MyMath = {
  add: function(x, y) {
    return(x + y);
  }
}
console.log(MyMath.add(3, 4)); // 7

The MyMath object has an add property that is invoked with two arguments, x and y.

Let's add another property to the MyMath object called pow. Pow should return the first argument to the exponent of the second argument.

var MyMath.pow = function(x, y) {
  var i = 0;
  var result = 1;
  while(i < y) {
    result = result * x;
    i++;
  }
  return(result);
}

console.log(MyMath.pow(2, 4)); // 16

JavaScript comes with a built-in Math object that operates similarly to the MyMath object we've constructed:

Math.pow(2, 5); // 32
MyMath.pow(2, 5); // 32

The Math object can be used to find the largest or smallest value in a series of numbers:

Math.max(22, 95, 44); // 95
Math.min(22, 95, 44); // 22

The Math object stores important constant values, like PI:

Math.PI; // 3.141592653589793

Make sure to investigate the Math object when doing mathematical operations with JavaScript.

Math.min(8, 2, 34);

Math.sqrt(16);

Math.round(18.87);