$("selector").slice(start, end)

$("selector").slice(start, end) slices matched set into subset specified by start and optional end.

Example 1: $("div").slice(0,1) will first find all <div> then slice the mathced set into subset starting from element at index=0 and ending "but NOT including" elment at index=1.

<div>A</div>  // index = 0 
<div>B</div>  // index = 1 
<div>C</div>

　　

Matched set is a set of elements matching selector. For example, in Example 1 matchted set is set of elements matching $("div") selector

<p>p-1</p>
<div id='someID'>div-1</div> //index = 0
<div class='someClass'>div-2</div> //index = 1
<div>div-3</div> //index = 2
<span>span-1</span>

　　

Example 2: $("div").slice(1) will first find all <div> then slice the mathced set into subset starting from element at index=1 to the last element.

<div>A</div>  // index = 0 
<div>B</div>  // index = 1 
<div>C</div>  // index = 2 

　　

Example 3: $("div").slice(-2) will first find all <div> then slice the mathced set into subset starting from element at index=-2 "second element from the last" to the last element.

<div>A</div>  // index = 0 & index = -3 from last 
<div>B</div>  // index = 1 & index = -2 from last 
<div>C</div>  // index = 2 & index = -1 from last