Computer scienceProgramming languagesKotlinTypes and data structuresData types

Type system

Theory

String length

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Write an implementation of a function named getLength that returns the length of a String, or -1 if the string is null.

Sample Input 1: 

Kotlin

Sample Output 1: 

6
Write a program in Kotlin
fun getLength(input: String?): Int {
return 0
}
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