Empty string - Rosetta Code

Rosetta Code - Simple English Wikipedia, the free encyclopedia

code golf - Rosetta Stone Challenge: Draw a Box Plot - Code Golf

Different Code Documenting Strategies, Fernando Doglio

User input/Text - Rosetta Code

An uroboros program with 50 programming languages : r/programming

Reverse a string - Rosetta Code

Repeat a string - Rosetta Code

Code Length Measured in 14 Languages—Wolfram Blog

Substring - Rosetta Code

PDF) The Rosetta Stone Austin A Mardon and Nawshin Haq