简介
HTML4有一些对浏览历史的前进后退API的支持如：
window.history.back(); window.history.forward(); window.history.go(-1); window.history.go(1);
HTML5浏览器新添加了不刷新改变网址地址的API：
var currentState = history.state;
var stateObj = { foo: "bar" };
window.history.pushState(stateObj, "page 2", "bar.html");
这些API构建单页面无刷新网站是十分有帮助的，很可惜他们在老浏览器中无法使用。history.js可以解决这个问题。
History.js优雅地支持所有浏览器的History/State的 API（pushState，replaceState，onPopState）。包括数据，title，replaceState。支持 jQuery，MooTools和Prototype。在HTML5浏览器，它使用原生API，可以直接修改URL，而无需再使用哈希值。对于HTML4 浏览器则使用Hash值进行兼容。
代码示例
(function(window,undefined){
// Bind to StateChange Event
History.Adapter.bind(window,'statechange',function(){ // Note: We are using statechange instead of popstate
var State = History.getState(); // Note: We are using History.getState() instead of event.state
});
// Change our States
History.pushState({state:1}, "State 1", "?state=1"); // logs {state:1}, "State 1", "?state=1"
History.pushState({state:2}, "State 2", "?state=2"); // logs {state:2}, "State 2", "?state=2"
History.replaceState({state:3}, "State 3", "?state=3"); // logs {state:3}, "State 3", "?state=3"
History.pushState(null, null, "?state=4"); // logs {}, '', "?state=4"
History.back(); // logs {state:3}, "State 3", "?state=3"
History.back(); // logs {state:1}, "State 1", "?state=1"
History.back(); // logs {}, "Home Page", "?"
History.go(2); // logs {state:3}, "State 3", "?state=3"
})(window);
效果
当在HTML5浏览器中时地址栏的变化
www.mysite.com www.mysite.com/?state=1 www.mysite.com/?state=2 www.mysite.com/?state=3 www.mysite.com/?state=4 www.mysite.com/?state=3 www.mysite.com/?state=1 www.mysite.com www.mysite.com/?state=3
当在HTML4浏览器中时地址栏的变化
www.mysite.com www.mysite.com/#?state=1&_suid=1 www.mysite.com/#?state=2&_suid=2 www.mysite.com/#?state=3&_suid=3 www.mysite.com/#?state=4 www.mysite.com/#?state=3&_suid=3 www.mysite.com/#?state=1&_suid=1 www.mysite.com www.mysite.com/#?state=3&_suid=3
演示：http://browserstate.github.io/history.js/demo/
项目地址： https://github.com/browserstate/history.js
