ArrayFilter(array, filter)
Last updated March 31, 2003
Version: 1 | Requires: ColdFusion 5 | Library: DataManipulationLib
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:
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:
| Name | Description | Required |
|---|---|---|
| array | Array to modify. | Yes |
| filter | The UDF, NOT THE NAME, but the UDF to use as a filter. | Yes |
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 (ray@camdenfamily.com)
* @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>
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