Range.compareBoundaryPoints()

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句法
范例
规范
浏览器兼容性
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Range.compareBoundaryPoints() method compares the boundary points of the 范围 with those of another range.

句法

compare = range.compareBoundaryPoints(how, sourceRange);

返回值

compare: A number, -1 , 0 ，或 1 , indicating whether the corresponding boundary-point of the 范围 is respectively before, equal to, or after the corresponding boundary-point of sourceRange .

参数

how

A constant describing the comparison method:

Range.END_TO_END compares the end boundary-point of sourceRange to the end boundary-point of 范围 .
Range.END_TO_START compares the end boundary-point of sourceRange to the start boundary-point of 范围 .
Range.START_TO_END compares the start boundary-point of sourceRange to the end boundary-point of 范围 .
Range.START_TO_START compares the start boundary-point of sourceRange to the start boundary-point of 范围 .

If the value of the parameter is invalid, a DOMException 采用 NotSupportedError code is thrown.

sourceRange


									范围

to compare boundary points with the range.

范例

var range, sourceRange, compare;
range = document.createRange();
range.selectNode(document.getElementsByTagName("div")[0]);
sourceRange = document.createRange();
sourceRange.selectNode(document.getElementsByTagName("div")[1]);
compare = range.compareBoundaryPoints(Range.START_TO_END, sourceRange);

规范

规范	状态	注释
DOM The definition of 'Range.compareBoundaryPoints()' in that specification.	实时标准	无变化。
Document Object Model (DOM) Level 2 Traversal and Range Specification The definition of 'Range.compareBoundaryPoints()' in that specification.	过时	最初的规范。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`compareBoundaryPoints`	Chrome Yes	Edge 12	Firefox 4	IE 9	Opera 9	Safari Yes	WebView Android Yes	Chrome Android Yes	Firefox Android 4	Opera Android Yes	Safari iOS Yes	Samsung Internet Android Yes

图例

完整支持

另请参阅

The DOM interfaces index

元数据

最后修改： Sep 18, 2019

DOM (文档对象模型)
范围
构造函数
1. Range()
特性
方法
1. cloneContents()
2. cloneRange()
3. collapse()
4. compareBoundaryPoints()
5. ~~compareNode()~~
6. comparePoint()
7. createContextualFragment()
8. deleteContents()
9. detach()
10. extractContents()
11. getBoundingClientRect()
12. getClientRects()
13. insertNode()
14. intersectsNode()
15. isPointInRange()
16. selectNode()
17. selectNodeContents()
18. setEnd()
19. setEndAfter()
20. setEndBefore()
21. setStart()
22. setStartAfter()
23. setStartBefore()
24. surroundContents()
25. toString()
继承：
1. AbstractRange
DOM 相关页面

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句法

返回值

参数

范例

规范

浏览器兼容性

图例

另请参阅

相关话题