round up numbers 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: rounding off numbers 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

Example 4: how to round numbers in javscript

//You can do this instead of using math.round! It is easier to understand using this function!

var x = 5.0364342423;
console.log(x.toFixed(2));
//result should be 5.04