jQuery eq method
To select a specific number in a set, there is a method eq. The number of an element in a set can be either positive or negative. In the second case, the count is from the end, -1 will be the last element, -2 - the penultimate, and so on:
Let's look at an example where the following paragraphs are written in the HTML code:
<p>text</p>
<p>text</p>
<p>text</p>
<p>text</p>
Let's find all the paragraphs, and then color the third one (numbered 2, since the numbering starts from zero) red:
$('p').eq(2).css('color', 'red');
Find the fifth li in the set and color it green.
Find the second to last li in the set and color it red.