router5是一个HTML5 路由器，简单并且强大。基于 route-node 和 path-parser。

特性

• Use of hash (#)
• Default start route: a default route to navigate to on load if the current URL doesn't match any route. Similar to$routeProvider.otherwise()in Angular ngRoute module.
• Start and stop router
• Nested named routes: routes are identified by names and parameters so you don't have to manipulate URLs directly. Routes can be nested, introducing the notion of route segments.
• Route change listeners: listen to any route change, or register listeners for a specific route.
• Route node change listeners: you can add listeners to be triggered on a specific named route node. They will be triggered if that named route node is the node a component tree needs to be re-rendered from.
• Segments deactivation: you can register segment components. On a route change, it will ask those components through theircanDeactivatemethod if they allow navigation. Similar to Angular 2 and Aurelia routers.
• You are in control! You decide what to do on a route change and how to do it.

// Route definitions  var router = new Router5()      .setOption('useHash', true)      // Users      .addNode('users',      '/users')      .addNode('users.view', '/view/:id')      .addNode('users.list', '/list')      // Orders      .addNode('orders',           '/orders')      .addNode('orders.completed', '/completed')      .addNode('orders.pending',   '/pending')      .addNode('orders.view',      '/details/:id')      // Listener      .addListener(drawGraph)      // Start      .start();    function drawGraph(toState, fromState) { /* ... */ }  // Init  drawGraph(router.getState());

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