JS Practice — Built-in Objects

String.prototype.trim() — trailing spaces

📖 Usage Example

'  hello  '.trim()      // → 'hello'
'
 text 	'.trim()   // → 'text'
'no spaces'.trim()   // → 'no spaces'

Use trim() to remove all leading and trailing whitespace characters from a string.

String.prototype.trim() — Trailing Whitespace

.trim() also removes spaces at the end of a string.

Challenge: Implement cleanTrailing(str) that removes trailing whitespace.

cleanTrailing('hello   ') // → 'hello'

💡 Hints (1)