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Selection.type

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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

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

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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