The Math Object
Javascript (and some other languages) have built-in mathematics commands to simplify your life. In JS this is called the Math object.
The various abilities of the Math object can be found in various locations online. Here is a sampling of what you might use.
Code | Description |
Math.PI | Returns 3.141592653589793 |
Math.pow(base, exponent) | Returns the base raised to the exponent |
Math.sqrt(number) | Returns the square root of the given number |
Math.round(number) | Rounds the given number to the nearest integer |
Math.ceil(number) | Returns the number rounded up to the nearest integerEx. Math.ceil(5.1) returns 6 |
Math.floor(number) | Returns the number rounded down to the nearest integerEx. Math.floor(5.8) returns 5 |
Math.random() | Returns a pseudorandom decimal number between 0 and 1.
Use it in conjunction with Math.floor() to return an integer. |
Last modified 4yr ago