JS Practice — Built-in Objects

Advanced — toSnakeCase

📖 Usage Example

toSnakeCase('helloWorld')   // → 'hello_world'
toSnakeCase('fooBarBaz')    // → 'foo_bar_baz'

toSnakeCase converts camelCase strings to snake_case by inserting underscores before capitals.

Advanced: String Transformation — snake_case

Challenge: Implement toSnakeCase(str: string): string converting a camelCase string to snake_case.

toSnakeCase('helloWorld')    // → 'hello_world'
toSnakeCase('fooBarBaz')    // → 'foo_bar_baz'

💡 Hints (1)