JS实现简单路由器功能的方法

var wawa = {};
wawa.Router = function(){
 function Router(){
 }
 Router.prototype.setup = function(routemap, defaultFunc){
 var that = this, rule, func;
 this.routemap = [];
 this.defaultFunc = defaultFunc;
 for (var rule in routemap) {
 if (!routemap.hasOwnProperty(rule)) continue;
 that.routemap.push({
 rule: new RegExp(rule, 'i'),
 func: routemap[rule]
 }); 
 }
 };
 Router.prototype.start = function(){
 console.log(window.location.hash);
 var hash = location.hash, route, matchResult;
 for (var routeIndex in this.routemap){
 route = this.routemap[routeIndex];
 matchResult = hash.match(route.rule);
 if (matchResult){
 route.func.apply(window, matchResult.slice(1));
 return; 
 }
 }
 this.defaultFunc();
 };
 return Router;
}();
var router = new wawa.Router();
router.setup({
 '#/list/(.*)/(.*)': function(cate, id){
 console.log('list', cate, id);
 },
 '#/show/(.*)': function(id){
 console.log('show', id); 
 }
}, function(){
 console.log('default router');
});
router.start();