Decimal number validate is not working with length

Question

I'm trying to validate the decimal number pattern with specific length but no luck.

I tried this pattern="[0-9]){1,2}(\.){1}([0-9]){2}" but this works only 12.12

I'm looking for (13digits).(6digits) pattern validation and length validation.

Expected is,

      `1234567891123.123456` //true
      `1234567891123123456`  //false since only number
      `12345678911234.123456` //false since 14digits.6digits
      `1234567891123.1234567` //false since 13digits.7digits

What be the better regx to fulfill the above validations?

Answer 1

A useful site for regex testing is https://regexr.com/

\b\d{13}\.\d{6}\b

Answer 2

The regex that you need should be like this:

([0-9]){13}(\.){1}([0-9]){6}

So for example in HTML form input, it would look like this:

 <form action=""> <input type="text" required pattern="([0-9]){13}(\.){1}([0-9]){6}" /> <button type='submit'>Submit</button> </form>

Answer 3

You can try using this:

\d{13}[.]\d{6}

Answer 4

Working Demo:

 var regex = /^[0-9]{13}\.[0-9]{6}$/i; function getValue() { return document.getElementById("myinput").value; } function test() { alert(regex.test(getValue())); }

 <input type="text" id="myinput"/> <button id="testBtn" onclick=test()>test</button>