JS Practice — Built-in Objects

String.prototype.match() — named capture groups

📖 Usage Example

'test 123 foo'.match(/d+/)    // → ['123', index: 5, ...]
'test 1 and 2'.match(/d+/g)  // → ['1', '2']

Use match() to search a string against a regex and return the match results, or null if not found.

String.prototype.match() — Named Groups

Named groups use (?<name>...) syntax and are accessible via result.groups.

Challenge: Implement parseColor(str) that extracts r, g, b from 'rgb(255,128,0)' using named groups.

parseColor('rgb(255,128,0)') // → { r: 255, g: 128, b: 0 }

💡 Hints (1)