Say I have a `val someSet: Set<String>? = se...

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[dave08]

Say I have a val someSet: Set<String>? = setOf("this", "that", "this=3") and I'd like to extract the 3 as an Int, is this the most ideomatic/efficient way to do it?

someSet?.firstOrNull { it.startsWith("this=") }
					?.substringAfter("this=")
					?.toInt() ?: 0

[dalexander]

Yeah, I guess that would work. There might be better options depending on the context but that seems fine for a one-off call.

[dave08]

Thanks for confirming! I was kinda thinking I was missing some magic stdlib function though...

[digitalsanctum]

I think you want ?.toIntOrNull() ?: 0 for the last bit

[dave08]

Right! Thanks for pointing that out 🙂