It s used to bypass the null safety in Kotlin Use it only if kotlinlang #getting-started

It's used to “bypass” the null safety in Kotlin. U...

sindrenm

11/22/2016, 1:20 PM

It's used to “bypass” the null safety in Kotlin. Use it only if you have a nullable type and you're sure that your variable is not null at the time:

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var lastName: String? = "Rudolf"
lastName!!.length // would throw if lastName was indeed null.

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