How can I efficiently remove a key from an object?

[VirtualVirgin]

"delete" does not work as expected:

There are some methods to iterate over the keys in the object and remove one and return a copy of the original, but that seems a little excessive and painful for that task at hand. Is there something simple like "delete"?

[VirtualVirgin]

So this works but it's just a little clunky:

var testObject = {"testKey1": "testValue1", "testKey2": "testValue2"};

// removes a key from an object, but just be aware that it does not edit the object in place
// you must use the new object made here to replace the original
inline function objectRemoveKey(obj, keyToRemove)
{
    local newObj = {};

    for (key in obj)
    {
        if (key != keyToRemove)
        {
            newObj[key] = obj[key];
        }
    }
    
    return newObj;
}

var testRemove = objectRemoveKey(testObject, "testKey1");

Console.print(trace(testRemove));

[d.healey]

@VirtualVirgin You can't, as you've discovered you have to recreate the object. I usually just set the value to undefined instead.

[Christoph Hart]

@d-healey can it be done in plain JS? I can clone that syntax and add it in HiseScript, as this is actually a valid request.

[Christoph Hart]

Haha so yeah delete key is the syntax, but that feels somewhat weird…

[d.healey]

@Christoph-Hart Maybe make it match the array remove method.

[Christoph Hart]

@d-healey yeah something like JSON.delete(obj, key) is the easiest way, the delete syntax would require a real brain-twister with the current parser.