Jquery method to select the child element: 1. Use the children() method to get all direct child elements of the specified element, the syntax is "$("specified element").children()"; 2. Use eq () method selects sub-elements based on index numbers, the syntax is "sub-element.eq(index)".
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
jquery selects the child element
In jquery, you can use the children() eq() method to select the child element
The children() method returns all direct child elements of the selected element.
eq() method returns the element with the specified index number of the selected element. Index numbers start with 0, so the index number of the first element is 0 (not 1).
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("div").children().eq(1).css("background-color","yellow");
});
});
</script>
</head>
<body>
<div>
<p>这是 div 元素中的段落。</p>
<p>这是 div 元素中的段落。</p>
<p>这是 div 元素中的段落。</p>
</div>
<button>选择div元素的第2个子元素</button>
</body>
</html>
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