JS Practice — Built-in Objects

String.prototype.padStart() — no padding when already long enough

📖 Usage Example

'5'.padStart(3, '0')       // → '005'
'hi'.padStart(5, '-')     // → '---hi'
'hello'.padStart(3)       // → 'hello'

Use padStart() to pad the beginning of a string with a fill character until it reaches the target length.

String.prototype.padStart() — No-Op

If str.length >= targetLength, .padStart() returns str unchanged.

Challenge: Implement padToFive(str) that pads to length 5.

padToFive('hi')      // → '   hi'
padToFive('hello!')  // → 'hello!'  (unchanged)

💡 Hints (1)