onpopstate
特性为
WindowEventHandlers
混合
EventHandler
为处理
popstate
events on the window.
A
popstate
event is dispatched to the window each time the active history entry changes between two history entries for the same document. If the activated history entry was created by a call to
history.pushState()
, or was affected by a call to
history.replaceState()
，
popstate
event's
state
property contains a copy of the history entry's state object.
注意
: Calling
history.pushState()
or
history.replaceState()
won't trigger a
popstate
event. The
popstate
event is only triggered by performing a browser action, such as clicking on the back button (or calling
history.back()
in JavaScript), when navigating between two history entries for the same document.
window.onpopstate = funcRef;
funcRef
是处理程序函数。
For example, a page at
http://example.com/example.html
running the following code will generate alerts as indicated:
window.onpopstate = function(event) {
alert("location: " + document.location + ", state: " + JSON.stringify(event.state));
};
history.pushState({page: 1}, "title 1", "?page=1");
history.pushState({page: 2}, "title 2", "?page=2");
history.replaceState({page: 3}, "title 3", "?page=3");
history.back(); // alerts "location: http://example.com/example.html?page=1, state: {"page":1}"
history.back(); // alerts "location: http://example.com/example.html, state: null
history.go(2); // alerts "location: http://example.com/example.html?page=3, state: {"page":3}
Note that even though the original history entry (for
http://example.com/example.html
) has no state object associated with it, a
popstate
event is still fired, when we activate that entry after the second call to
history.back()
.
| 规范 | 状态 | 注释 |
|---|---|---|
|
HTML 实时标准
The definition of 'onpopstate' in that specification. |
实时标准 |
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
onpopstate
|
Chrome 5 | Edge 12 | Firefox 4 | IE 10 | Opera 11.5 | Safari 6 | WebView Android 37 | Chrome Android 18 | Firefox Android 4 | Opera Android 11.5 | Safari iOS 5.1 | Samsung Internet Android 1.0 |
完整支持