HashChangeEvent

HashChangeEvent interface represents events that fire when the fragment identifier of the URL has changed.

The fragment identifier is the part of the URL that follows (and includes) the # symbol.

特性

This interface also inherits the properties of its parent, Event .

HashChangeEvent.newURL 只读
The new URL to which the window is navigating.
HashChangeEvent.oldURL 只读
The previous URL from which the window was navigated.

方法

This interface has no methods of its own, but inherits the methods of its parent, Event .

范例

Syntax options for a hash change

You can listen for the hashchange event using any of the following options:

window.onhashchange = funcRef;
					

or

<body onhashchange="funcRef();">
					

or

window.addEventListener("hashchange", funcRef, false);
					

Basic example

function locationHashChanged() {
  if (location.hash === '#somecoolfeature') {
    somecoolfeature();
  }
}
window.addEventListener('hashchange', locationHashChanged);
					

Polyfill

There are several fallback scripts listed on the Modernizr GitHub page . Basically, those scripts check the location.hash at a regular interval. Here is a version that allows only one handler to be bound to the onhashchange 特性:

;(function(window) {
  // Exit if the browser implements that event
  if ( "onhashchange" in window.document.body ) { return; }
  var location = window.location,
      oldURL = location.href,
      oldHash = location.hash;
  // Check the location hash on a 100ms interval
  setInterval(function() {
    var newURL = location.href,
        newHash = location.hash;
    // If the hash has changed and a handler has been bound...
    if ( newHash != oldHash && typeof window.onhashchange === "function" ) {
      // Execute the handler
      window.onhashchange({
        type: "hashchange",
        oldURL: oldURL,
        newURL: newURL
      });
      oldURL = newURL;
      oldHash = newHash;
    }
  }, 100);
})(window);
					

规范

规范 状态 Comment
HTML Living Standard
The definition of 'HashChangeEvent' in that specification.
实时标准 初始定义

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
HashChangeEvent Chrome 5 Edge 12 Firefox 3.6 IE 8 Opera 10.6 Safari 5 WebView Android Yes Chrome Android Yes Firefox Android 4 Opera Android 11 Safari iOS 5 Samsung Internet Android Yes
newURL Chrome Yes Edge 12 Firefox 6 IE No Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes
oldURL Chrome Yes Edge 12 Firefox 6 IE No Opera Yes Safari Yes WebView Android Yes Chrome Android Yes Firefox Android Yes Opera Android Yes Safari iOS Yes Samsung Internet Android Yes

图例

完整支持
完整支持
不支持
不支持
  1. HashChangeEvent
  2. 特性
    1. newURL
    2. oldURL
  3. 继承:
    1. Event
  4. Related pages for HTML DOM
    1. BeforeUnloadEvent
    2. DOMStringMap
    3. ErrorEvent
    4. GlobalEventHandlers
    5. HTMLAnchorElement
    6. HTMLAreaElement
    7. HTMLAudioElement
    8. HTMLBRElement
    9. HTMLBaseElement
    10. HTMLBaseFontElement
    11. HTMLBodyElement
    12. HTMLButtonElement
    13. HTMLCanvasElement
    14. HTMLContentElement
    15. HTMLDListElement
    16. HTMLDataElement
    17. HTMLDataListElement
    18. HTMLDialogElement
    19. HTMLDivElement
    20. HTMLDocument
    21. HTMLElement
    22. HTMLEmbedElement
    23. HTMLFieldSetElement
    24. HTMLFormControlsCollection
    25. HTMLFormElement
    26. HTMLFrameSetElement
    27. HTMLHRElement
    28. HTMLHeadElement
    29. HTMLHeadingElement
    30. HTMLHtmlElement
    31. HTMLIFrameElement
    32. HTMLImageElement
    33. HTMLInputElement
    34. HTMLIsIndexElement
    35. HTMLKeygenElement
    36. HTMLLIElement
    37. HTMLLabelElement
    38. HTMLLegendElement
    39. HTMLLinkElement
    40. HTMLMapElement
    41. HTMLMediaElement
    42. HTMLMetaElement
    43. HTMLMeterElement
    44. HTMLModElement
    45. HTMLOListElement
    46. HTMLObjectElement
    47. HTMLOptGroupElement
    48. HTMLOptionElement
    49. HTMLOptionsCollection
    50. HTMLOutputElement
    51. HTMLParagraphElement
    52. HTMLParamElement
    53. HTMLPictureElement
    54. HTMLPreElement
    55. HTMLProgressElement
    56. HTMLQuoteElement
    57. HTMLScriptElement
    58. HTMLSelectElement
    59. HTMLShadowElement
    60. HTMLSourceElement
    61. HTMLSpanElement
    62. HTMLStyleElement
    63. HTMLTableCaptionElement
    64. HTMLTableCellElement
    65. HTMLTableColElement
    66. HTMLTableDataCellElement
    67. HTMLTableElement
    68. HTMLTableHeaderCellElement
    69. HTMLTableRowElement
    70. HTMLTableSectionElement
    71. HTMLTemplateElement
    72. HTMLTextAreaElement
    73. HTMLTimeElement
    74. HTMLTitleElement
    75. HTMLTrackElement
    76. HTMLUListElement
    77. HTMLUnknownElement
    78. HTMLVideoElement
    79. History
    80. ImageData
    81. Location
    82. MessageChannel
    83. MessageEvent
    84. MessagePort
    85. Navigator
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    87. NavigatorID
    88. NavigatorLanguage
    89. NavigatorOnLine
    90. NavigatorPlugins
    91. PageTransitionEvent
    92. Plugin
    93. PluginArray
    94. PopStateEvent
    95. PortCollection
    96. PromiseRejectionEvent
    97. RadioNodeList
    98. Transferable
    99. ValidityState
    100. Window
    101. WindowBase64
    102. WindowEventHandlers
    103. WindowTimers