How to alert using jQuery

Question

This works:

$('.overdue').addClass('alert'); 

But this doesn't:

$('.overdue').alert('Your book is overdue.');  

What is the correct jQuery syntax for:

FOR EACH CLASS="overdue"    alert('Your book is overdue'); NEXT 

Answer 1

$(".overdue").each( function() {     alert("Your book is overdue."); }); 

Note that ".addClass()" works because addClass is a function defined on the jQuery object. You can't just plop any old function on the end of a selector and expect it to work.

Also, probably a bad idea to bombard the user with n popups (where n = the number of books overdue).

Perhaps use the size function:

alert( "You have " + $(".overdue").size() + " books overdue." );