Flatten an array

flatternArray.cfm

<cfscript>
a = [1,[2,[3,[4,5],6,7],8,9],10];

function recurse(data) {
    var result = [];
    data.each(function(item) {
        if (isArray(item)) {
            result.append(recurse(item), true);
        } else {
            result.append(item);
        }
    });
    return result;
}

function looping(data) {
    var result = [];
    var clone = [];
    arrayAppend(clone, data, true);
    while (clone.len()) {
        var item = clone[1];
        clone.deleteAt(1);
        if (isArray(item)) {
            clone.append(item, true);
        } else {
            result.append(item);
        }
    }
    return result;
}

function reduce(data) {
    return data.reduce(function(result, item) {
        if (isArray(item)) {
            return result.append(reduce(item), true);
        } 
        return result.append(item);
    }, []);
}



writeDump(recurse(a));
writeDump(looping(a));
writeDump(reduce(a));



</cfscript>