00:42 <FromGitter> <asnewman> Hello! New to Crystal. Would someone be able to answer my (simple) Stack Overflow question? https://stackoverflow.com/questions/73239448/adding-a-nilable-variable-to-a-non-nilable-array

00:44 <FromGitter> <Blacksmoke16> looks like it already was

00:44 <FromGitter> <Blacksmoke16> `typeof` and `==` isnt the way to the reduce the type of a variable

00:44 <FromGitter> <Blacksmoke16> that's more suited to `.is_a?` among others

00:45 <FromGitter> <Blacksmoke16> but in this case you could prob just do like ⏎ ⏎ ```if new_task ⏎ current_todos << new_task ⏎ end``` [https://gitter.im/crystal-lang/crystal?at=62ec682f72ad51741fd4ba4f]

00:45 <FromGitter> <Blacksmoke16> or even just push the task directly in the parser via like `current_todos << task`

00:47 <FromGitter> <Blacksmoke16> which you'd have to do if you want to be able to add more than one thing, otherwise `new_task` will just be set to the last value you add

00:48 <FromGitter> <Blacksmoke16> and correction, you cant just do `if new_task`. iirc something with the way option parser works and how the var is closured or something

00:52 <FromGitter> <asnewman> Yeah for some reason the answer on the SO question was still resulting in the same error 🤔

00:53 <FromGitter> <Blacksmoke16> yea it relates to the way option parser works. the value is closured by the `#on` method. compiler doesnt know when/if it'll be called, or what value will be assigned to it. so it keeps nil in the union

00:53 <FromGitter> <Blacksmoke16> in this case could just do like `current_todos << new_task.not_nil!`, but better to just handle this directly in the on method so it properly handles multiple tasks

00:54 <FromGitter> <asnewman> Ah I see. You're right, when I removed the parser section and simply did this it worked: ⏎ ⏎ ```code paste, see link``` [https://gitter.im/crystal-lang/crystal?at=62ec6a363a42316d33e47693]

00:54 <FromGitter> <Blacksmoke16> yea, in this case you dont even need the if. the compiler can figure out that it'll always be a string

00:55 <FromGitter> <asnewman> Great, that works. Thanks for the help!

00:56 <FromGitter> <Blacksmoke16> 👍 np