Javascript Rounding Operations

Learning the different kinds of rounding operations can have many applications. In this article I will explain what each rounding application in JavaScript does. Even though the code may change on different programming languages, they all do the same.

Math.floor();

Rounds the number down 
Examples:

1. Math.floor(1.5) = 1
2. Math.floor(2.7) = 2
3. Math.floor(1.3) = 1
   

Math.ceil();

Rounds the number up 
Examples:

1. Math.ceil(1.5) = 2
2. Math.ceil(2.7) = 3
3. Math.ceil(1.3) = 2
   

Math.round();

Rounds the number to the closest integer
Examples:

1. Math.round(1.5) = 2
2. Math.round(2.7) = 3
3. Math.round(1.3) = 1