$
as function namespace
as namespace prefix
avoiding name collisions
defining locally
in plugins
in ready handler
naming conflicts
sharing with other libraries
$()
adding wrapper methods
for element creation
$.ajax(), 2nd, 3rd
$.ajaxSetup()
$.browser, 2nd
$.each()
$.extend(), 2nd, 3rd, 4th
$.fn, 2nd, 3rd
$.get(), 2nd
$.getJSON(), 2nd
$.getScript()
$.grep()
$.inArray()
$.livequery.run()
$.makeArray()
$.map()
$.noConflict(), 2nd, 3rd
$.post(), 2nd
$.styleFloat
$.trim(), 2nd
$.unique()
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