RegEx for separator not accepting amount validation-CodePudding

I am trying to create a regex to have a number only stat from 1 and max length without decimal 10, decimal 2 I try this regex ^[1-9][0-9]{0,9}([,.][0-9]{0,2})?$

now facing the issue of comma separator not accepting amount validation.

Valid

1,000

1,500.99

150,000.09

invalid

0000

1000

CodePudding user response：

Assuming you want:

To restrict the amount of digits before decimals to a max of ten;
To optionally include decimals with a max of 2 digits (and at least one);

Then try:

^(?!\d \d(?:,\d ){3})[1-9]\d{0,2}(?:,\d{3}){0,3}(?:\.\d\d?)?$

See an online