Question

I am building a validation for testing to make sure that a correct part number has been entered. Each part begins with MR in CAPS followed by a [SPACE] followed three numbers. e.g. ( MR 123 )

The problem is if i can not seem to figure out how to validate this using jquery.

The part number always begins with MR.

                var type = $("input#type").val();

                        // Check a that a tank type has been entered.
                        if( type.length < 5  && type.not().contain("MR")){

                                $("#error_upload").html("Please enter the tank number in a format MR XXX.");
                                $("#type").css({borderColor:'red'}).focus();                                    
                                $("name,#file").css({borderColor:'#ccc'});
                                return false;

                        }

Any help would be great.

Answer 1

I would suggest using regex.

if (type.match(/^MR\s[0-9]{3}$/){
...
}

Basically, it looks for MR, then a space (\s), then 3 numbers ([0-9]{3}). If anything else shows up, it will return false.