How use regex operator 'or' in javascript with parenthesis?

Question

I need to find those strings:

'555-555-5555'

'(555)555-5555'

I wrote:

number = '(555)555-5555'
regex =   ((/^\d{3,3}-\d{3,3}-\d{4,4}$/) | (/^\(\d{3,3}\)\d{3,3}-\d{4,4}$/))
let s =  number.match(regex)

But it returns 'null'. I don't understand, how use operator 'or' in regex here?

If you're trying to validate phone numbers, regex is generally the wrong tool for the job. — zzzzBov
– zzzzBov, Commented Aug 3, 2019 at 14:45
Try console.log(regex). You are using the Bitwise OR (|) operator and not alternation — adiga
– adiga, Commented Aug 3, 2019 at 14:49

Morphyish · Accepted Answer · 2019-08-03 14:55:19Z

3

You need to use to place the / delimiters outside of the regex. you can also simplify the quantifiers {3,3} by writing simply {3}.

This should give you the expected result

/^(?:\d{3}-\d{3}-\d{4}|\(\d{3}\)\d{3}-\d{4})$/gm

answered Aug 3, 2019 at 14:45

Morphyish

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