Sorry if this question is silly, Please feel free to correct.
I am using the code below for a form validation. How can I use a wildcard so that flagL12, flagM52 and other form ids starting with flag are validated?
var flag = $('#flag').val();
    if(!new RegExp("^[0-9]{2}$").test(flag)){
        $('#require-msg').html("FLAG format invalid! <br>Only 2 digit Numbers allowed for FLAG");
        $('#modal_opener').click();
        e.preventDefault();
        return false;
    }
I tried using ^ after flag but it does not work
    var flag = $('#flag^').val();
    if(!new RegExp("^[0-9]{2}$").test(flag)){
        $('#require-msg').html("FLAG format invalid! <br>Only 2 digit Numbers allowed for FLAG");
        $('#modal_opener').click();
        e.preventDefault();
        return false;
    }
Only 2 digit Numbers allowed for FLAG");}` – A. Wolff Jun 24 '16 at 08:27