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Adding method: 1. Use the "$("specified element").after(new element)" statement to add a sibling element after the specified element; 2. Use "$("specified element" ).before(new element)" statement can add sibling elements in front of the specified element; 3. Use the "$(parent element).append(child element)" statement.
The operating environment of this tutorial: windows7 system, jquery1.10.2 version, Dell G3 computer.
In jquery, you can use the following methods to add elements:
after(): Add sibling elements after the specified element
before(): Add a sibling element to the front of the specified element
append(): Add a child element to the end of the specified element
prepend(): Add a child element to the beginning of the specified element
1. Use after()
# The ##after() method inserts content "behind" outside the selected element.<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<span style='color:red;'>一个span元素</span>";
$("div").after(a);
})
})
</script>
<style>
body *{
background-color:pink;
}
</style>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>在div后插入一个同级节点</button>
</body>
</html>
2. Use before()
before() to insert sibling nodes before the specified element
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<span style='color:red;'>一个span元素</span>";
$("div").before(a);
})
})
</script>
<style>
body *{
background-color:pink;
}
</style>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>在div前插入一个同级节点</button>
</body>
</html>
3. Use the append()
append( ) method to insert content "at the end" inside the selected element.<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<p style='color:red;'>一个p元素</p>";
$("div").append(a);
})
})
</script>
<style>
body *{
background-color:pink;
}
</style>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>向div内的末尾处插入一个子元素</button>
</body>
</html>
4. Use prepend()
prepend() method to insert to the "beginning" inside the selected element content.
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script src="js/jquery-1.10.2.min.js"></script>
<script>
$(function () {
$("button").click(function () {
var a = "<p style='color:red;'>一个p元素</p>";
$("div").prepend(a);
})
})
</script>
<style>
body *{
background-color:pink;
}
</style>
</head>
<body>
<h1>一个大标题</h1>
<p>一个p段落</p>
<div>一个div元素</div>
<p>一个p段落</p>
<button>向div内的开始处插入一个子元素</button>
</body>
</html>
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