How do you make an event listener that detects if a boolean variable becomes true?

Question

For example, I have var menu_ready = false;. I have an ajax function that sets menu_ready to true when the ajax stuff is done:

//se         


        

Answer 1

There is no cross-browser (cross-platform) event which gets that job done. There are some pretty specific mechanisms to watch objects propertys for instance, but nothing to watch out for booleans (imo).

You want to execute a callback function aswell at the time you're setting that variable to true. You can also apply some jQuery sugar:

function myCallbackReference() {
    alert('yay');
}

$('#foobar').load('/some/code', function() {
    menu_ready = true;
}).done( myCallbackReference );