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Tag: kotlin

What difference between !! and ? in Kotlin, see below table.

November 5, 2019nhancvLeave a Comment on What difference between !! and ? in Kotlin, see below table.

a: String? a.length a?.length a!!.length “cat” Compile-time error 3 3 null Compile-time error null NullPointerException  Ref: https://kotlinlang.org/docs/reference/null-safety.html

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Detect wifi format with regex in Kotlin

November 5, 2019nhancvLeave a Comment on Detect wifi format with regex in Kotlin

The snip code below demonstrates how to extract data from WIFI data which from QRCode 

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