Question

I’m new to js. trying to create mini validation function which will check fields if they’re empty or not.

What i wanna do is, to call func like that checkIfEmpty("fullname, email,..."), then inside function, check each field seperated by comma, collect empty fields to one array, and check at the end if this array is empty or not. Tried something like following func, but don’t know all alternatives of php functions in js. Please help me to realize my idea..

function checkIfEmpty(fields)
{
    var emptyFields=new Array();
    fields=fields.split(',');
    foreach(fields as field)
    {
        if (!field.val()) {
            field.attr('class', 'invalid');
            emptyFields[] = field;
        }
        }
        if(emptyFields.length()==0){return true;}
        else {return false;}
}

Answer 1

Seems like you want something like this:

$("input:text").each(function(i, field) {
     if (!field.val()) {
         field.addClass('invalid');
     }
});
return ($("input.invald").length > 0); // return true if invalid fields