How to sort an array of structs in ColdFusion

Question

I have an array of structs in ColdFusion. I\'d like to sort this array based on one of the attributes in the structs. How can I achieve this? I\'ve found the StructSort fun

Answer 1

The accepted solution (from CFLib.org) is NOT safe. I experimented with this for something I needed to do at work and found that it returns incorrect results when sorting numeric with floats.

For example if I have these structs: (pseudocode)

a = ArrayNew(1);

s = StructNew();
s.name = 'orange';
s.weight = 200;
ArrayAppend(a, s);

s = StructNew();
s.name = 'strawberry';
s.weight = 28;
ArrayAppend(a, s);

s = StructNew();
s.name = 'banana';
s.weight = 90.55;
ArrayAppend(a, s);

sorted_array = arrayOfStructsSort(a, 'weight', 'asc', 'numeric');

Iterate over the sorted array and print the name & weight. It won't be in the right order, and this is a limitation of mixing an arbitrary key with the value being sorted.