WoW:USERAPI round: Difference between revisions
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(Wow, the old one was overly complicated.) |
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== Example == | == Example == | ||
local number = round(math.pi, | local number = round(math.pi, 3) | ||
print(number) -- prints 3. | print(number) -- prints 3.142 | ||
==Code== | ==Code== | ||
<!-- No, no sanity checks are needed. That's the programmers responsibility. --> | <!-- No, no sanity checks are needed. That's the programmers responsibility. --> | ||
<pre>function round(number, decimals) | <pre>function round(number, decimals) | ||
return (("%%.%df"):format(decimals)):format(number) | |||
end</pre> | end</pre> | ||
== See Also == | |||
* [[truncate]] | |||
__NOTOC__ | __NOTOC__ | ||
Revision as of 08:59, 18 January 2010
This page documents a <i>user-defined function</i> that you can copy and paste into your addon. Replace PREFIX with your addon or lib prefix to avoid conflicts between different versions of these functions.
Round a number off to n places.
number = round(number, decimals)
Function Parameters
Arguments
- number
- Number. The number to round.
- decimals
- Number. Round to this many places.
Returns
- number
- Number. The rounded number.
Example
local number = round(math.pi, 3) print(number) -- prints 3.142
Code
function round(number, decimals)
return (("%%.%df"):format(decimals)):format(number)
end
See Also