Last active
May 17, 2016 23:16
-
-
Save joates/6eef2c5e64f86c27312de2f766378ae5 to your computer and use it in GitHub Desktop.
rounding float values in javascript can produce undesirable results (i.e. errors in the exponent), although certain situations can still produce inaccuracy, this fixes the common cases, ** use with caution **
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // fixes rounding of float values in javascript | |
| Number.prototype.round = function(num_places) { | |
| return +(Math.round(this +'e+'+ num_places) +'e-'+ num_places) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
usage:
include this snippet in your code and use it like this...
var rounded_value = float_value.round(3) /* rounds to 3 decimal places */