JS Practice — Built-in Objects

String.prototype.toLocaleLowerCase() — empty string

📖 Usage Example

'HELLO'.toLocaleLowerCase()   // → 'hello'
'WORLD'.toLocaleLowerCase()   // → 'world'
'ABC123'.toLocaleLowerCase()  // → 'abc123'

Use toLocaleLowerCase() to convert a string to lowercase using the locale-specific rules of the host environment.

String.prototype.toLocaleLowerCase() — Empty String

Calling toLocaleLowerCase() on an empty string returns an empty string.

Challenge: Implement safeLocaleLower(str) and handle the empty string case.

safeLocaleLower('') // → ''
safeLocaleLower('HI') // → 'hi'

💡 Hints (1)