Nullability in Java and Kotlin | Kotlin Documentation
Receivers and Extensions - Dave Leeds on Kotlin
How to use compareTo() and other string actions in Kotlin - LogRocket Blog
Kotlin Inline Functions - GeeksforGeeks
Kotlin Essential Training: Functions, Collections, and I/O Online Class | LinkedIn Learning, formerly Lynda.com
Are Kotlin strings immutable? - Quora
Kotlin Tutorial for Beginners - Kotlin String Function (With Example) - YouTube
Kotlin Functions | Know Two Main Types of Functions in Kotlin
Kotlin String
Kotlin println | How println Works in Kotlin with Examples?
Functions in Kotlin
10 Useful Kotlin String Extensions | by Alisa "Foxicorn" Nekrasova | Better Programming
String class functions are not accessible in kotlin android studio - Stack Overflow
Kotlin Collection Functions
Compare String Kotlin - Stack Overflow
final and const keywords | Kotlin | by Tony Trejo | Medium
Multiline String Literals in Kotlin | Real Kotlin
Kotlin Tutorial: string.split() - YouTube
JetBrains - New in Kotlin 1.3: The ifEmpty function can be used in a chained call to specify a fallback value for an empty collection, array, or string. The ifBlank function does
Tutorial: Structural search and replace in Kotlin | IntelliJ IDEA Documentation
Kotlin Type Mismatch for a function return a string - Stack Overflow
