Append an element with fade in effect [jQuery]

$(html).hide().appendTo("#mycontent").fadeIn(1000);

Adding a little more info:

jQuery implements "method chaining", which means you can chain method calls on the same element. In the first case:

$("#mycontent").append(html).fadeIn(999);

you would be applying the fadeIn call to the object which is target of the method chain, in this case #mycontent. Not what you want.

In @icktoofay's (great) answer you have:

$(html).hide().appendTo("#mycontent").fadeIn(1000);

This basically means, create the html, set it as hidden by default, append it to #mycontent and then fade it in. The target of the method chain now is hmtl instead of #mycontent.