Javascript combine regex with length check

Asked Jun 15 '20 at 15:47

Active Jun 15 '20 at 15:54

Viewed 131 times

I have the following check in my Javascript code.

if(someValueToCheck.replace(/[^0-9]/g,"").length>13){
    return "Invalid"
}

My question is if it is possible to combine this into a single regex. I am planning to plug that regex directly to a ember-cp-validations library using something like below;

    validations['my-custom-regex'] = {
      'with': myfield.regex, //Consolidated regex from above
      'allowBlank': true,
      'message': message
   };

edited Jun 15 '20 at 15:49

Nir Alfasi

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asked Jun 15 '20 at 15:47

copenndthagen

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Can you elaborate your logic in English please? Is "non-digit string greater than 13 length" a proper translation? – MonkeyZeus Jun 15 '20 at 15:53
@MonkeyZeus Yes, that is exactly right – copenndthagen Jun 15 '20 at 15:54
Also, are you just interested in validation or data correction as well? You have data correction with your JS but the validator plugin doesn't sound like it will correct the data. – MonkeyZeus Jun 15 '20 at 15:55
I just want to validate the data...No correction needed – copenndthagen Jun 15 '20 at 15:55
`\D{14,}` would do it. – MonkeyZeus Jun 15 '20 at 15:55
Ok...but what about this part someValueToCheck.replace(/[^0-9]/g,"")....how can we club this with the length check? – copenndthagen Jun 15 '20 at 15:56
`{14,}` is the length check – MonkeyZeus Jun 15 '20 at 15:58
Hmm...ok...and \D would just consider the digits (ignoring any other characters like say -(MINUS)/.(DOT)/(COMMA), etc – copenndthagen Jun 15 '20 at 15:59
`\D` is the same as `[^0-9]`. If you're really new to regex then I recommend checking out https://regex101.com/ because it will tell you the literal meaning of the syntax – MonkeyZeus Jun 15 '20 at 16:00
In plain English my regex says "require 14 or more non-digits". However, I do have to correct myself by adding start and end anchors: `^\D{14,}$` – MonkeyZeus Jun 15 '20 at 16:02
Thanks a lot ....Actually in my case, if "only digits" are greater than 13 length, then it should be invalid...So assume that is what the above regex would help – copenndthagen Jun 15 '20 at 16:16

Javascript combine regex with length check

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