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• 句法
• 范例
• 规范
• 浏览器兼容性
• 相关话题

DOMPointReadOnly 方法 toJSON() 返回 DOMPointInit object giving the JSON form of the point object.

句法

pointJSON = DOMPointReadOnly.toJSON();
					

参数

None.

返回值

新的 DOMPointInit object whose properties are set to the values in the DOMPoint or DOMPointReadOnly on which the method was called.

范例

此范例创建 DOMPoint object representing the top-left corner of the current window, in screen coordinates, then converts that to JSON.

var topLeft = new DOMPoint(window.screenX, window.screenY);
var pointJSON = topLeft.toJSON();
					

规范

规范	状态	注释
Geometry Interfaces Module Level 1 The definition of 'DOMPointReadOnly.toJSON()' in that specification.	候选推荐	初始定义

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
toJSON()	Chrome 61	Edge 79	Firefox 62	IE No	Opera 48	Safari 10.1	WebView Android 61	Chrome Android 61	Firefox Android 62	Opera Android 45	Safari iOS 10.3	Samsung Internet Android 8.0

图例

完整支持

完整支持

不支持

不支持

元数据

• 最后修改： Mar 18, 2019

相关话题

1. DOM (文档对象模型)
2. DOMPointReadOnly
3. 构造函数

   1. DOMPointReadOnly()
4. 特性

   1. w
   2. x
   3. y
   4. z
5. 方法

   1. fromPoint()
   2. toJSON()
6. DOM 相关页面

   1. AbortController
   2. AbortSignal
   3. AbstractRange
   4. Attr
   5. ByteString
   6. CDATASection
   7. CSSPrimitiveValue
   8. CSSValue
   9. CSSValueList
   10. CharacterData
   11. ChildNode
   12. 注释
   13. CustomEvent
   14. DOMConfiguration
   15. DOMError
   16. DOMErrorHandler
   17. DOMException
   18. DOMImplementation
   19. DOMImplementationList
   20. DOMImplementationRegistry
   21. DOMImplementationSource
   22. DOMLocator
   23. DOMObject
   24. DOMParser
   25. DOMPoint
   26. DOMPointInit
   27. DOMRect
   28. DOMString
   29. DOMTimeStamp
   30. DOMTokenList
   31. DOMUserData
   32. Document
   33. DocumentFragment
   34. DocumentType
   35. 元素
   36. ElementTraversal
   37. Entity
   38. EntityReference
   39. 事件
   40. EventTarget
   41. HTMLCollection
   42. MutationObserver
   43. 节点
   44. NodeFilter
   45. NodeIterator
   46. NodeList
   47. NonDocumentTypeChildNode
   48. ProcessingInstruction
   49. PromiseResolver
   50. 范围
   51. StaticRange
   52. 文本
   53. TextDecoder
   54. TextEncoder
   55. TimeRanges
   56. TreeWalker
   57. TypeInfo
   58. USVString
   59. UserDataHandler
   60. XMLDocument