Showing posts with label Javascript decimal multiplication error. Show all posts
Showing posts with label Javascript decimal multiplication error. Show all posts

Wednesday, June 24, 2009

Javascript Multiplication Error

When we try to multiply a decimal value with another decimal number or integer, javascript does not seem to handle this well.

for eg: 38.23 * 100 returns 3822.999999999995 instead of 3823.00

To solve this issue we need to use Math.round function

Solution:
Multiply the number by 1000, round it and then divide by 1000. This will give the expected result.

Math.round(1000 * 38.23 * 100) / 1000

Hope this solves the multiplication issue present in javascript and also your time.