I want to validate a string like

• AB01
• CA50

Case

1. Total number of string must be four.
2. First two character must be alphabet
3. Last two character must be numeric.

I have used following expression but it can validate only first two character as a Alphabet, how to validate last 2 and total number?

var re = new RegExp('^[a-zA-Z]{2}');
re.test('CC8A8');

I want to validate a string like

• AB01
• CA50

Case

1. Total number of string must be four.
2. First two character must be alphabet
3. Last two character must be numeric.

I have used following expression but it can validate only first two character as a Alphabet, how to validate last 2 and total number?

var re = new RegExp('^[a-zA-Z]{2}');
re.test('CC8A8');

• javascript
• jquery
• regex

3 Answers 3

Below regex will help you to validate:

var re = new RegExp('^[a-zA-Z]{2}[0-9]{2}$');

Just add the pattern to validate 2 digits at the last.

var re = new RegExp("^[a-zA-Z]{2}\\d{2}$", "m");

You can use:

var re = /^[a-zA-Z]{2}\d{2}$/;

no need to use RegExp object for this.