jQuery insertBefore () method
Examples
Insert a <span> element before each <p> element:
$("button").click(function(){
$("<span>Hello world!</span>").insertBefore("p");
});
$("<span>Hello world!</span>").insertBefore("p");
});
try it"
Definition and Usage
insertBefore () method before the selected element into an HTML element.
Tip: If you need after being selected element into an HTML element, use insertAfter () method.
grammar
$(content).insertBefore(selector)
| 参数 | 描述 |
|---|---|
| content | 必需。规定要插入的内容（必须包含 HTML 标签）。 注意：如果content是已存在的元素，它将从它的当前位置被移除，并被插入在被选元素之前。 |
| selector | 必需。规定在何处插入内容。 |
More examples
Insert an existing element
How to use insertBefore () method before each selected element into an existing element.