How to check whether a string contains a substring in Kotlin?

Question

Example:

String1 = \"AbBaCca\";
String2 = \"bac\";

I want to perform a check that String1 contains String2 or not.

Answer 1

The most idiomatic way to check this is to use the in operator:

String2 in String1

This is equivalent to calling contains(), but shorter and more readable.