Returns the closest number in a list to the given value - CFML

closestNumberInList.cfm

<cffunction name="closestNumberInList" returntype="numeric" hint="Returns the closest number in a list to the given value">
	<cfargument name="Value" 	type="numeric" 	required="true" hint="A number to convert to the nearest in our list">
	<cfargument name="List" 	type="string" 	required="true" hint="A list of valid numbers we can return">

	<cfscript>
		var Local = {};

		// Convert list to array
		Local.ListArray = ListToArray(Arguments.List);

		// Set up variable to hold the lowest difference
		Local.LowestDifference = '';

		// Loop through array
		For (Local.ThisNumber IN Local.ListArray) {
			// Calculate difference between this and the value
			Local.ThisDifference = abs(Local.ThisNumber - Arguments.Value);
			// If the new calculated is lower than the existing, replace it.
			if (NOT isNumeric(Local.LowestDifference) OR Local.ThisDifference LT Local.LowestDifference) {
				Local.LowestDifference = Local.ThisDifference;
				// Set return value
				Local.ReturnVal = Local.ThisNumber;
			}
		}
	
		return Local.ReturnVal;
	</cfscript>
</cffunction>