trim decimal places in javascript code example

Example 1: remove decimals javascript

Math.floor(5.9) //5
Math.ceil(5.1) //6
Math.round(9.5) //10
5.3 >> 0 //5 (same as Math.floor)
7.9 >> 0 //7 (same as Math.floor)

Example 2: convert decimal to binary javascript

var n = 5;
n.toString(2); // "101"

Example 3: get decimals from float javascript

js> 2.3 % 1
0.2999999999999998