js implements custom routing
This article implements custom routing, mainly the use of event hashchange, and then encapsulates it according to our business needs.
First implement a router class and instantiate it.
function _router(config){
this.config = config ? config : {};
}
_router.prototype = {
event:function(str,callback){
var events = str.split(' ');
for (var i in events) window.addEventListener(events[i],callback,false);
},
init: function() {
this.event('load hashchange',this.refresh.bind(this));
return this;
},
refresh: function() {
this.currentUrl = location.hash.slice(1) || '/';
this.config[this.currentUrl]();
},
route: function(path,callback){
this.config[path] = callback || function(){};
}
}
function router (config){
return new _router(config).init();
}The only thing that needs to be noted above is that when using addEventListener, you need to pay attention to the use of the bind function, because I stepped on a trap and realized $.proxy().
You can use two methods to register when using it above, but the second one depends on the first one.
Method one:
var Router = router({
'/' : function(){content.style.backgroundColor = 'white';},
'/1': function(){content.style.backgroundColor = 'blue';},
'/2': function(){content.style.backgroundColor = 'green';}
})Method two:
Router.route('/3',function(){ content.style.backgroundColor = 'yellow'; })
Complete code:
<html>
<head>
<title></title>
</head>
<body>
<ul>
<li><a href="#/1">/1: blue</a></li>
<li><a href="#/2">/2: green</a></li>
<li><a href="#/3">/3: yellow</a></li>
</ul>
<script>
var content = document.querySelector('body');
function _router(config){
this.config = config ? config : {};
}
_router.prototype = {
event:function(str,callback){
var events = str.split(' ');
for (var i in events) window.addEventListener(events[i],callback,false);
},
init: function() {
this.event('load hashchange',this.refresh.bind(this));
return this;
},
refresh: function() {
this.currentUrl = location.hash.slice(1) || '/';
this.config[this.currentUrl]();
},
route: function(path,callback){
this.config[path] = callback || function(){};
}
}
function router (config){
return new _router(config).init();
}
var Router = router({
'/' : function(){content.style.backgroundColor = 'white';},
'/1': function(){content.style.backgroundColor = 'blue';},
'/2': function(){content.style.backgroundColor = 'green';}
})
Router.route('/3',function(){
content.style.backgroundColor = 'yellow';
})
</script>
</body>
</html>
<script>
</script>The above is the entire content of this article. I hope that the content of this article can bring some help to everyone's study or work. I also hope to support the PHP Chinese website!
For more articles related to js implementation of custom routing, please pay attention to the PHP Chinese website!
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