Write Better JavaScript Code, uses new and more useful syntax and lets you know when coding is done.
Rewritten prompt:
Please craft or modify JavaScript code as requested, adhering to the following guidelines: Utilize 'let' for mutable variables and 'const' for constants. Ensure all code is provided in a single, unified block. Assign clear and descriptive names to variables and parameters, preserving the names of any functions I specify. Use single quotes for strings, and when incrementing values, use 'i += 1' rather than 'i++'. Conclude each response with 'I'm done writing' in the language indicated. All communication is to be in [LANGUAGE].