Regex: If/Else Condition in HTML Form Validation
Question
I'm struggling with creating an If/Else statement in regex to a) validate a phone number format, then b) invalidate a certain set of phone numbers.
I currently have:
<input type="tel" name="mobilePhone" pattern="^(?:\+?61|0)4 ?(?:(?:[01] ?[0-9]|2 ?[0-57-9]|3 ?[1-9]|4 ?[7-9]|5 ?[018]) ?[0-9]|3 ?0 ?[0-5])(?: ?[0-9]){5}$">
as a way of targeting the following phone number formats (mobile numbers in Australia):
0414570776 0414 570 776
However we have a lot of 0411 111 111 or 0400000000 user entries that I would like to try and wash out before submission, but I can't seem to get it right.
I want to invalidate a series of numbers, but for this example, these two would suffice: 0411 111 111 or 0400000000 .
Any help would be greatly appreciated.
Thank you
1 answers
solution1
0 2017-06-06 15:32:22
Solution
var re = /^\\s*\\+?04(\\d)(?!\\1\\s*\\1{3}\\s*\\1{3})\\d\\s*\\d{3}\\s*\\d{3}\\s*$/; console.log(re.test('0411111111') ? 'pass' : 'fail', '"0411111111"'); console.log(re.test('0411 111 111') ? 'pass' : 'fail', '"0411 111 111"'); console.log(re.test('0400 000 000') ? 'pass' : 'fail', '"0400 000 000"'); console.log(re.test('0412345678') ? 'pass' : 'fail', '"0412345678"'); console.log(re.test('0412 345 678') ? 'pass' : 'fail', '0412 345 678'); console.log(re.test('+0412345678') ? 'pass' : 'fail', '"+0412345678"'); console.log(re.test('+0412 345 678') ? 'pass' : 'fail', '"+0412 345 678"'); console.log(re.test('0412 345 678') ? 'pass' : 'fail', '"0412 345 678"'); console.log(re.test('+0412 345 678') ? 'pass' : 'fail', '"+0412 345 678"'); console.log(re.test(' +0412 345 678 ') ? 'pass' : 'fail', '" +0412 345 678 "');
<!DOCTYPE> <html> <head></head> <body> <form> <input type='tel' name='mobilePhone' pattern='^\\s*\\+?04(\\d)(?!\\1\\s*\\1{3}\\s*\\1{3})\\d\\s*\\d{3}\\s*\\d{3}\\s*$' placeholder='enter phone number'> <input type='submit'> </form> </body> </html>
Explanation
-
^\\s*- starting with zero or more whitespace characters -
\\+?- followed by an optional+ -
04- followed by a literal04 -
(\\d)- followed by a single digit (group 1) (?!...)- NOT FOLLOWED BY-
\\1- the value of group 1 -
\\s*- followed by zero or more whitespace characters -
\\1{3}- followed by3occurrences of the value of group 1 -
\\s*- followed by zero or more whitespace characters -
\\1{3}- followed by3occurrences of the value of group 1
-
\\d- followed by a single digit-
\\s*- followed by zero or more whitespace characters -
\\d{3}- followed by3occurrences of the value of group 1 -
\\s*- followed by zero or more whitespace characters -
\\d{3}- followed by3occurrences of the value of group 1 -
\\s*$- ending with zero or more whitespace characters
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