ArrayFirstDefined: Returns first "defined" array item (ColdFusion cfml)

arrayFirstDefined.cfm

<cfscript>
/* 20210301 ArrayFirstDefined: Returns first "defined" array item
TryCF: https://www.trycf.com/gist/9bac4917179a3e44a542bc4768a95a31
Twitter: https://twitter.com/gamesover/status/1366439036903120897 
ACF: Requires CF2018+ to use arrayFirst().
Lucee CFML: Reproted arrayFirst() bug. https://luceeserver.atlassian.net/browse/LDEV-3319 */
any function arrayFirstDefined(required array array, any fallbackValue="") output=false hint="Returns first defined array item" {
	for (local.item in arguments.array){
		if (not isNull(local.item)) return local.item;
	}
	return arguments.fallbackValue;
}

/* Test */
a = [];
arrayResize(a, 15);
a[15]=1;

results = [
    "arrayLen" = arrayLen(a), 
    "arrayFirst" = arrayFirst(a),
    "arrayFirstDefined" = arrayFirstDefined(a),
    "originalArray" = a
];

writedump(var=results, label="Test Results");

</cfscript>