Regular Expression phone number not working

Question

Here is my code

var _phonenumber = '09000000000';
if _phonenumber.match(/\A0[5789]0\d{8}\z/)
  console.log('valid');
else
  console.log('invalid)';

But if I input correct phone, it still print invalid 09000000000

The test() method tests for a match in a string. This method returns true if it finds a match, otherwise it returns false. — Hassan Imam, Mar 07 '18 at 03:34
Possible duplicate of [Regex - Match whole string](https://stackoverflow.com/questions/6298566/regex-match-whole-string) — Wiktor Stribiżew, Mar 07 '18 at 08:20

score 1 · Accepted Answer · answered Mar 07 '18 at 03:44

The match() method retrieves the matches when matching a string against a regular expression.

If the string matches the expression, it will return an Array containing the entire matched string as the first element, followed by any results captured in parentheses. If there were no matches, null is returned.

In your case, you are missing the parenthesis around match.

var _phonenumber = '09000000000';
if(_phonenumber.match(/\A0[5789]0\d{8}\z/))
  console.log('valid');
else
  console.log('invalid');
  
console.log(_phonenumber.match(/\A0[5789]0\d{8}\z/));

The test() method executes a search for a match between a regular expression and a specified string. Returns true or false.

Using test() will be better for your use case.

var _phonenumber = '09000000000';
if(/\A0[5789]0\d{8}\z/g.test(_phonenumber))
  console.log('valid');
else
  console.log('invalid');

The output is correct as your regex doesn't have `\A` in the beginning and `\z` at the end. — Hassan Imam, Mar 07 '18 at 04:17
@HungNguyen you can accept the answer see https://stackoverflow.com/help/someone-answers — Navoneel Talukdar, Mar 07 '18 at 04:49

Regular Expression phone number not working

1 Answers1