当 一个窗口的哈希改变时就会触发 hashchange 事件 (查看 location.hash)。
语法
window.onhashchange = funcRef;
或者
<body onhashchange="funcRef();">
覆盖任何现有的事件处理程序。
为了将一个事件侦听器添加到现有的一个事件处理程序集中，使用函数 "addEventListener"。
window.addEventListener("hashchange", funcRef, false);
参数
funcRef- 对一个函数的一个引用。
例子
if ("onhashchange" in window) {
alert("该浏览器支持hashchange事件!");
}
function locationHashChanged() {
if (location.hash === "#somecoolfeature") {
somecoolfeature();
}
}
window.onhashchange = locationHashChanged;
hashchange 事件
hashchange 事件对象有下面两个属性
| 属性 | 类型 | 描述 |
newURL |
DOMString |
当前页面新的URL |
oldURL |
DOMString |
当前页面旧的URL |
Workaround for event.newURL and event.oldURL
//let this snippet run before your hashchange event binding code
if(!window.HashChangeEvent)(function(){
var lastURL=document.URL;
window.addEventListener("hashchange",function(event){
Object.defineProperty(event,"oldURL",{enumerable:true,configurable:true,value:lastURL});
Object.defineProperty(event,"newURL",{enumerable:true,configurable:true,value:document.URL});
lastURL=document.URL;
});
}());
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard GlobalEventHandlers |
Living Standard | |
| HTML 5.1 GlobalEventHandlers |
Recommendation | |
| HTML5 GlobalEventHandlers |
Recommendation |
浏览器兼容性
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 |
|---|---|---|---|---|---|---|
| Basic support | 5.0 | (Yes) | 3.6 (1.9.2) |
8.0
|
10.6 | 5.0 |
| Feature | Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | 2.2 | (Yes) | 1.0 (1.9.2) | 9.0 | 11.0 | 5.0 |