:first Selector

first selectorversion deprecated: 3.4

Description: Selects the first matched DOM element.

  • version added: 1.0jQuery( ":first" )

As of jQuery 3.4, the :first pseudo-class is deprecated. Remove it from your selectors and filter the results later using .first().

The :first pseudo-class is equivalent to :eq( 0 ). It could also be written as :lt( 1 ). While this matches only a single element, :first-child can match more than one: One for each parent.

Additional Notes:

  • Because :first is a jQuery extension and not part of the CSS specification, queries using :first cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. To achieve the best performance when using :first to select elements, first select the elements using a pure CSS selector, then use .filter(":first").
  • Selected elements are in the order of their appearance in the document.


Finds the first table row.

<!doctype html>
<html lang="en">
  <meta charset="utf-8">
  <title>first demo</title>
  td {
    color: blue;
    font-weight: bold;
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
  <tr><td>Row 1</td></tr>
  <tr><td>Row 2</td></tr>
  <tr><td>Row 3</td></tr>
$( "tr:first" ).css( "font-style", "italic" );


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