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======Programming - ColdFusion - Snippets - roundBetter======

A better round function taken from [[http://jamiekrug.com/blog/index.cfm/2009/2/12/ColdFusion-round-function-bug-when-operation-performed-on-argument|Jamie Krug's ColdFusion Blog - ColdFusion round() function bug when operation performed on argument]]

<code cfm>
<cffunction name="roundBetter" returntype="numeric" access="public" output="false">
    <cfargument name="toRound" type="numeric" required="true" />
    <cfargument name="scale" type="numeric" required="false" default="0"
                hint="Scale to round to (number of decimal places)." />

    <cfscript>
        var result = arguments.toRound;
        var scaleMultiplier = 10^arguments.scale;

        result = result * scaleMultiplier;
        result = round(javaCast('string', result) );
        result = javaCast('string', result/scaleMultiplier);

        return result;
    </cfscript>
</cffunction>
</code>