Having an issue with the list of bools
Let’s say I have a list of bools combined with nulls
[null,null, false,false, null,null]
When I check whether items in list == false, I get the result for all of them as true. I tried changing lacing, also played with code block, levels etc. But it’s the only result I get.
I know that I can find a way around. But I’m just curious is it an expected result, or not? Faced such an issue several times before.
Revit 2024.3
Dynamo 2.19
This is expected. The == node uses truthy falsy equivalence with boolean values. This means that it’s evaluating the object’s “truth-ness” or “false-ness” rather than an actual boolean value.
I suggest cleaning null values before feeding them into the design options is primary.
Ok, now it’s starting to make a sense 
Thanks for your examples, I didn’t know about this truthy falsy behavoiur in Dynamo before.
Cheers
@Andriy in your case you could try using an Object.IsNull and Math.Xor nodes to exclude the nulls
