TryCF Gist

trycf-gist-1772005397188-0c537071-81d6-9246-7cbf-15f9a316d21b.cfm

<cfscript>
var array = ['a','b','c','a'];
var mystruct = {};
var arraynew = [];
var len = arrayLen(array);

for (var i = 1; i <= len; i++) {
    for (var j = i + 1; j <= len; j++) {
        
        // 1. Grab your two words
        var val1 = array[i];
        var val2 = array[j];

        // 2. Put them in a temp array and sort them alphabetically
        // This ensures ['dog', 'bear'] ALWAYS becomes ['bear', 'dog']
        var tempPair = [val1, val2];
       
        arraySort(tempPair, "textnocase"); 

        // 3. Create a unique string key (e.g., "bear|dog")
        var pairKey = tempPair;
        writeDump(pairKey);
        // 4. Check if we've seen this combo before
        if (!structKeyExists(mystruct, pairKey)) {
            // Add the original pair to our result
            arrayAppend(arraynew, [val1, val2]);
            
            // Mark this combo as "seen" in our tracker
            mystruct[pairKey] = true;
        }
    }
}


</cfscript>