Question

Why the following code doesn’t work? I want that input would be disabled for a one second and then it would go normal again.

$('#chat_bg').attr('disabled', true).delay(1).$('#chat_bg').attr('disabled', false);

Answer 1

Aside from the syntactically invalid JavaScript, and the fact that .delay() interprets the argument as milliseconds, not seconds:

.delay() only affect the events queue by default, which .attr() does not interact with.

Keep it simple, and just use setTimeout.

var $elt = $('#chat_bg').attr('disabled', true);
setTimeout(function ()
{
    $elt.attr('disabled', false);
}, 1000);