If expression confusion

[nnet]

Hi, in trying to create an conditional if expression, I started with:

if [tags] == "blah" or [tags] == "blah2" or [tags] == "blah3" { blah }

but event data wasn't being "caught" by this expression.
I then changed the expression to:

if "blah" in [tags] or "blah2" in [tags] or "blah3" in [tags] { blah }

I have filters where I use expressions having if [tags] == "blah" { blah } that work.

Why does the first expression fail but the second one works?

Thanks

[nnet]

Can anyone provide some insight, thanks!

[Badger]

tags is an array that may contain more than one member, so testing for array membership using "in" is the right way to do this.

if [tags][0] == "blah" { ... }

will also work.

[nnet]

@Badger thanks for the explanation...your example [tags][0] == "blah" { ... } would test for the first element in the array if I understand correctly.

Thanks!