CODEWITHSUNDEEP
javascriptregex
Viku
Viku

Reputation: 2973

RegEx for phoneNumber with optional CountryCode

I am using the \+\d{1,4}\s?-\s?(?!0)\d{1,10}\b to execute the below test cases

1 - There should be at max 4 digits in between + and - . 
2 - Phone number shall be a combination of +,- and digits
3 - 0 shall not be allowed after - 
4 - After - only 10 digits are allowed
5 - Space allowed after and before -

E.g

    1 - +91234-1234567 - Fail (1st Condition fails)
    2 - +123-1234567  - Pass 
    3 - +               - Fail (2nd condition fails)
    4 - -               - Fail (2nd condition fails)
    5 - 91234545555     - Fail (2nd condition fails)
    6 - +21-012345      - Fail (3rd Condition fails)
    7 - +91-12345678910 - Fail (4th condition fails)
    8 - +32 - 12345678  - Pass (Space allowed before and after -)

Now i want to make some part ( Country code +91- ) as optional to execute the below test cases

E.g.    
     1)12345678 - Pass (Since we are making country code(+91-) as optional)
     2)+1233433 - Fail 
     3)+91-1233333- pass

To achive this i did the following changes in the regex /(\+\d{1,4}\s?-\s?)?(?!0)\d{1,10}\b/ but with the above updated regex its allowing the following also 

     1)-123455
     2)+123333

I want to make the whole thing as optional (+XX-) not the part of it . Please help me in it . Thanks in advance.

Upvotes: 2

Views: 387

Answers (1)

jdphenix
jdphenix

Reputation: 15415

/^(?:\+\d{1,4}\s?-\s?)?(?!0)\d{1,10}\b/

Breakdown: 

^                                  Assert at beginning of string 
(?:\+\d{1,4}\s?-\s?)?              Only changed to group country code
                                   and make it match 0 - 1 times.
and the rest                       Otherwise no changes.

The key changes are the string boundary assertion and the optional country code group.

Upvotes: 1

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