divide and round up javascript code example

Example 1: how to displayan inteiger to a tenth in javascript

Math.round(3.14159 * 100) / 100  // 3.14

3.14159.toFixed(2);              // 3.14 returns a string
parseFloat(3.14159.toFixed(2));  // 3.14 returns a number

Math.round(3.14159)  // 3
Math.round(3.5)      // 4
Math.floor(3.8)      // 3
Math.ceil(3.2)       // 4

Example 2: rounding off in javascript

var avg=10.55;
console.log(Math.round(avg)); //Prints 11

Example 3: javascript ceiling

var ceiling1 = Math.ceil(4.7); //5 
var ceiling2 = Math.ceil(-3.4); //-3