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这是一个实验中的功能
此功能某些浏览器尚在开发中,请参考浏览器兼容性表格以得到在不同浏览器中适合使用的前缀。由于该功能对应的标准文档可能被重新修订,所以在未来版本的浏览器中该功能的语法和行为可能随之改变。

The type read-only property of the Selection interface returns a DOMString describing the type of the current selection.

语法

value = sel.type

Value

A DOMString describing the type of the current selection. Possible values are:

  • None: 当前没有选择。
  • Caret: 选区已折叠(即 光标在字符之间,并未处于选中状态)。
  • Range: 选择的是一个范围。

例子

In this example, the event handler will fire each time a new selection is made. console.log(selection.type) will return Caret or Range depending on whether the caret is placed at a single point in the text, or a range has been selected.

var selection;

document.onselectionchange = function() {
  console.log('New selection made');
  selection = document.getSelection();
  console.log(selection.type);
};

Specifications

Specification Status Comment
Selection API
Selection.type
Working Draft Current

Browser compatibility

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

See also

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