RegExpbeginner

RegExp Constructor — digit pattern

📖 Usage Example

const re1 = /hello/i
const re2 = new RegExp('hello', 'i')
re1.test('Hello world') // → true

Use the RegExp constructor or literal syntax to create a regular expression.

RegExp Constructor

new RegExp('^\\d+$') matches strings of only digits.

Challenge: Verify that new RegExp('^\\d+$').test('123') returns true.

💡 Hints (1)

5/45