KT.EQUALS_NULL_CALL

Method 'equals()' is called with null parameter

To compare an object with null prefer using ==. This rule detects and reports instances in the code where the equals() method is used to compare a value with null.

Noncompliant Code

Copy 
fun isNull(str: String) = str.equals(null)

Compliant Code

Copy 
fun isNull(str: String) = str == null

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