Element.insertAdjacentText()

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insertAdjacentText() 方法将一个给定的文本节点插入在相对于被调用的元素给定的位置。

句法

element.insertAdjacentText(position, element);

参数

position
A DOMString representing the position relative to the element; must be one of the following strings:
  • 'beforebegin': Before the element itself.
  • 'afterbegin': Just inside the element, before its first child.
  • 'beforeend': Just inside the element, after its last child.
  • 'afterend': After the element itself.
element
A DOMString representing the text to be inserted into the tree.

返回值

Void.

例外

Exception Explanation
SyntaxError The position specified is not a recognised value.

Visualization of position names

<!-- beforebegin -->
<p>
<!-- afterbegin -->
foo
<!-- beforeend -->
</p>
<!-- afterend -->
注意:只有当节点位于树中并具有元素父元素时,beforebegin和afterend位置才能工作。

范例

beforeBtn.addEventListener('click', function() {
  para.insertAdjacentText('afterbegin',textInput.value);
});

afterBtn.addEventListener('click', function() {
  para.insertAdjacentText('beforeend',textInput.value);
});

Have a look at our insertAdjacentText.html demo on GitHub (see the source code too.) Here we have a simple paragraph. You can enter some text into the form element, then press the Insert before and Insert after buttons to insert it before or after the existing paragraph text using insertAdjacentText(). Note that the existing text node is not added to — further text nodes are created containing the new additions.

规范

Specification Status Comment
DOM
insertAdjacentText()
Living Standard  

浏览器兼容性

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support (Yes) 48.0 (48.0) ? (Yes) (Yes)
Feature Android Firefox Mobile (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? 48.0 (48.0) ? ? ?

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