jQuery parent > child选择器

它是一个jQuery选择器，用于选择所有是其父元素的直接子元素。

语法:

("parent > child")

参数:

parent。使用这个，父元素将被选中。
child。使用这个，指定的父元素的直接子元素将被选中。

示例 1:

<!DOCTYPE html>
<html>
<h1>
  <center>Geeks </center>
</h1>
<head>
  <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
  </script>
  <script>
    (document).ready(function () {
      ("div > span").css(
        "background-color", "green");
    });
  </script>
</head>
<body>
  <h3>All <span> elements that are
    a direct child of <div>
      element are selected.</h3>
  <div style="border:1px solid black;">
    <p>Geeks for Geeks
      <br>
      <span>
        jQuery parent > child Selector
      </span>
    </p>
  </div>
  <br>
  <div style="border:1px solid black;">
    <p>Geeks for Geeks</p>
    <span>
      jQuery parent > child Selector
    </span>
  </div>
</body>
</html>

输出:

jQuery parent > child选择器” title=”jQuery parent > child选择器” /></p>
<p><strong>示例 2:</strong></p>
<pre data-language=HTML><code class= <!DOCTYPE html> <html> <h1> <center>Geeks </center> </h1> <head> <script src= "https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"> </script> <script> $ParseError: KaTeX parse error: Expected '}', got 'EOF' at end of input: \dotsion () {$ ("div").css( "background-color", "green"); }); </script> </head> <body> <h3>All <div> elements are selected.</h3> <div style="border:1px solid black;"> <p>Geeks for Geeks</p> <p>jQuery parent > child Selector </p> </div> </body> </html>