Regular expression for extracting a number

Question

I would like to be able to extract a number from within a string formatted as follows:

\"<[1085674730]> hello foo1, how are you doing?\"

I\'m a novice wit

Answer 1

Use:

<\[(\d+)\]>

This is tested with ECMAScript regex.

It means:

• \[ - literal [
• ( - open capturing group
• \d - digit
• + - one or more
• ) - close capturing group
• \] - literal ]

The overall functionality is to capture one or more digits surrounded by the given characters.