Instead, consider using the safe call operator ( ?.) or the Elvis operator ( ?:), which handle null values more gracefully: For example: val length = nullableString!!.length // Not recommended If the value is actually null, it will throw a NullPointerException at runtime. The not-null assertion operator ( !!) should be used sparingly, as it forces a nullable value to be treated as non-null. Avoiding the Not-Null Assertion Operator ( !! ) For example: val nonNullableString: String = 'Hello' val nullableString: String? = nullīy specifying a variable’s nullability, Kotlin can help prevent NullPointerExceptions and make your code safer.Ģ. To do this, the ‘?’ modifier is used to indicate a nullable type. Kotlin explicitly requires developers to declare whether a variable can be null or not.

In this blog post, we’ll explore common mistakes made by Kotlin developers regarding null safety and share best practices to avoid these issues. By leveraging Kotlin’s built-in null safety features, developers can minimize the risk of runtime errors and produce more stable applications.

Kotlin is a modern, expressive programming language that prioritizes safety and reduces bugs caused by null pointer exceptions.

Kotlin do if not null