jQuery filters are used to refine the results that are returned from selectors.
A few examples:
$("p:first"): of the returned <p> tags, select the first one$("p:even"): select the even-number <p> tags$("a:gt(1)"): of the <a> tags, select all those after the 0th and 1st$("p:not(p:eq(2))"): select all the <p> tags except the one at index 2
This is paragraph 1
This is paragraph 2
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This is paragraph 4
This is paragraph 5