Jquery length of attribute undefined

Question

How can I check the lenght of the string that is in the attribute?This shows 'undefined' value:

var action = $(obj).closest("form").attr('action');
alert(action.lenght);

Answer 1

Your spelling is just a bit off, .lenght should be .length:

Click to copy

var action = $(obj).closest("form").attr('action');
alert(action.length);