## .eq( index )Returns: jQuery

Description: Reduce the set of matched elements to the one at the specified index.

- #### version added: 1.1.2.eq( index )

  - index
    Type: Integer
    An integer indicating the 0-based position of the element.

- #### version added: 1.4.eq( indexFromEnd )

  - indexFromEnd
    Type: Integer
    An integer indicating the position of the element, counting backwards from the last element in the set.

Given a jQuery object that represents a set of DOM elements, the `.eq()` method constructs a new jQuery object from one element within that set. The supplied index identifies the position of this element in the set.

Consider a page with a simple list on it:

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    <ul>  <li>list item 1</li>  <li>list item 2</li>  <li>list item 3</li>  <li>list item 4</li>  <li>list item 5</li></ul>

We can apply this method to the set of list items:

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    $( "li" ).eq( 2 ).css( "background-color", "red" );

The result of this call is a red background for item 3. Note that the supplied index is zero-based, and refers to the position of the element within the jQuery object, not within the DOM tree.

Providing a negative number indicates a position starting from the end of the set, rather than the beginning. For example:

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    $( "li" ).eq( -2 ).css( "background-color", "red" );

This time list item 4 is turned red, since it is two from the end of the set.

If an element cannot be found at the specified zero-based index, the method constructs a new jQuery object with an empty set and a `length` property of 0.

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    $( "li" ).eq( 5 ).css( "background-color", "red" );

Here, none of the list items is turned red, since `.eq( 5 )` indicates the sixth of five list items.

## Example:

Turn the div with index 2 blue by adding an appropriate class.

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    <!doctype html><html lang="en"><head>  <meta charset="utf-8">  <title>eq demo</title>  <style>  div {    width: 60px;    height: 60px;    margin: 10px;    float: left;    border: 2px solid blue;  }  .blue {    background: blue;  }  </style>  <script src="https://code.jquery.com/jquery-1.10.2.js"></script></head><body> <div></div><div></div><div></div><div></div><div></div><div></div> <script>$( "body" ).find( "div" ).eq( 2 ).addClass( "blue" );</script> </body></html>

#### Demo: