CFLib.org – Common Function Library Project

Description:
Applies a filter to an array (based on array_filter from PHP). For example, taking an array of numbers, you can write a filter UDF that will remove all numbers less than 10.

Return Values:
Returns an array.

Example:

<cfscript>
function noBerry(str) {
	return not findNoCase("berry",str);
}
</cfscript>

<cfset fruit = listToArray("apple,banana,orange,pear,lemon,lime,cherry,strawberry,blueberry")>
<cfdump var="#arrayFilter(fruit,noBerry)#">

Parameters:

Full UDF Source:

<cfscript>
/**
 * Applies a filter to an array.
 * 
 * @param array 	 Array to modify. (Required)
 * @param filter 	 The UDF, NOT THE NAME, but the UDF to use as a filter. (Required)
 * @return Returns an array. 
 * @author Raymond Camden (&#114;&#97;&#121;&#64;&#99;&#97;&#109;&#100;&#101;&#110;&#102;&#97;&#109;&#105;&#108;&#121;&#46;&#99;&#111;&#109;) 
 * @version 1, March 31, 2003 
 */
function arrayFilter(array,filter) {
	var newA = arrayNew(1);
	var i = 1;
	
	for(;i lte arrayLen(array); i=i+1) {
		if(filter(array[i])) arrayAppend(newA,array[i]);
	}
	
	return newA;
}
</cfscript>