Number extraction from string using regex working partially

Question

I'm extracting the phone numbers that begin with 9 followed by other 9 digits from tweets using JavaScript.

Here's the regex pattern I am using:

var numberPattern = /^9[0-9]{9}/;

Here's the pattern matching phase:

var numberstring = JSON.stringify(data[i].text);
        if(numberPattern.test(data[i].text.toString()) == true){

          var obj={
            tweet : {
                status : data[i].text
            },
            phone : numberstring.match(numberPattern)

          }
          //console.log(numberstring.match(numberPattern));
          stringarray.push(obj);

The problem is it is working for few numbers and not all. Also, I want to modify the regex to accept +91 prefix to numbers as well and(or) reject a starting 0 in numbers. I'm a beginner in regex, so help is needed. Thanks.

Example:

#Chennai O-ve blood for @arun_scribbles 's friend's father surgery in few days. Pl call 9445866298. 15May. via @arun_scribbles

Joe DeRose · Accepted Answer · 2015-05-15 17:04:05Z

1

Your regex pattern seems to be designed to allow a 9 or 8 at the beginning, but it would be better to enclose that choice in parentheses: /^(9|8)[0-9]{9}/.

To allow an optional "+" at the beginning, follow it with a question mark to make it optional: /^\+?(9|8)[0-9]{9}/.

To allow any character except "0", replace the (9|8) with a construct to accept only 1-9: /^\+?[1-9][0-9]{9}/.

And in your example, the phone number doesn't come at the beginning of the line, so the caret will not find it. If you're looking for content in the middle of the line, you'll need to drop the caret: /\+?[1-9][0-9]{9}/.

edited May 15, 2015 at 17:04

answered May 15, 2015 at 16:54

Joe DeRose

3,5883 gold badges30 silver badges35 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

Abhishek Dey Over a year ago

Thanks. Let me understand the conditions.

Abhishek Dey Over a year ago

They are accepting 8xxxxxxxx types but not 9xxxxxxxxx ones.

Anirudha · Accepted Answer · 2015-05-15 17:02:49Z

0

var numberPattern = /([+]91)?9[0-9]{9}\b/;

edited May 15, 2015 at 17:02

answered May 15, 2015 at 16:58

Anirudha

32.9k8 gold badges71 silver badges90 bronze badges

1 Comment

Anirudha Over a year ago

@AbhishekDey try removing the first \b..+ is breaking the boundary..Check out the edit

OhBeWise · Accepted Answer · 2015-05-15 17:34:30Z

0

Try this regex pattern: [\+]?[0-9]{1,4}[\s]?[0-9]{10}

It accepts any country code with +, a space, and then 10 digit number.

edited May 15, 2015 at 17:34

OhBeWise

5,4745 gold badges35 silver badges65 bronze badges

answered May 15, 2015 at 16:59

swati gupta

926 bronze badges

Collectives™ on Stack Overflow

Number extraction from string using regex working partially

3 Answers 3

2 Comments

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related