Round a float up to the next integer in javascript

Question

I need to round floating point numbers up to the nearest integer, even if the number after the point is less than 0.5.

For example,

• 4.3 should be 5 (no

Answer 1

Use ceil

var n = 4.3;
n = Math.ceil(n);// n is 5

Answer 2

Round up to the second (0.00) decimal point:

 var n = 35.85001;
 Math.ceil(n * 100) / 100;  // 35.86

to first (0.0):

 var n = 35.800001;
 Math.ceil(n * 10) / 10;    // 35.9

to integer:

 var n = 35.00001;
 Math.ceil(n);              // 36

jsbin.com

Answer 3

Use

Math.ceil( floatvalue );

It will round the value as desired.

Answer 4

Use the Math.ceil[MDN] function

var n = 4.3;
alert(Math.ceil(n)); //alerts 5