Fix expression to remove type-check compiler error in Xcode 12

[mushthak]

Hi There,

Created this PR to fix the issue(#52 ) causing type-check compiler error in Xcode 12.

Thanks for considering it!

[hho114]

You can assign the owner as a reviewer to take a look at your PR.

[mushthak]

You can assign the owner as a reviewer to take a look at your PR.

There is no edit option in the reviewers section. I will add a comment down here.
Hi @suzuki-0000 , awaiting review for this PR.

[magnett]

@mushthak it still doesn't compile using Xcode 12.2
error in CountdownLabel.swift, line 36 : Using '!' is not allowed here; perhaps '?' was intended?

[mushthak]

@magnett, For me it is a warning and no issue with compilation or running.

[magnett]

You probably have the, iOS Deployment Target < 13.0 , that's why you get a warning instead of an error

[Isuru-Nanayakkara]

@mushthak it still doesn't compile using Xcode 12.2
error in CountdownLabel.swift, line 36 : Using '!' is not allowed here; perhaps '?' was intended?

Yep, I'm getting this error too.