What is opposite to 'in' condition in Kotlin - '!` mark equivalent to Java

Question

In Java we do use ! in case we want to say NOT. But what should I use in Kotlin if I follow some range condition.

if( item in 5..10)

So here I want to say if item NOT in 5..10 ?? what is the proper construction?

Answer 1

You can use !in operator:

if (item !in 5..10)

See documentation for a full list of operators:

• https://kotlinlang.org/docs/operator-overloading.html#in-operator
• https://kotlinlang.org/docs/keyword-reference.html#hard-keywords