javascript钩子机制

// 处理钩子的对象  
var hook = (function(){  
    return {  
        timer:null,  
        init:function(){  
            this.callHooks(‘init‘);  
        },    
        callHooks:function(init){  
            var s = "hook_" + init + ‘_event‘,  
            f = [];   
            for(var h in window){  
                if(h.indexOf(s) != 0) continue;  
                f.push(h);  
            }     
            this.hooksTimeout(f);  
        },    
        hooksTimeout:function(hooks){  
            if(0 === hooks.length){  
                if(this.timer) clearTimeout(this.timer);  
                return;  
            }     
 
            var h = hooks.shift();  
            window[h].apply();  
            window[h] = undefined;  
 
            window.setTimeout(this.hooksTimeout(hooks), 200);  
        }     
    }     
}());  
 
// 钩子1  
var hook_init_event_tpl_html = function(){  
    document.getElementById(‘test‘).innerHTML = ‘This is HTML!‘;  
}  
 
// 钩子2  
var hook_init_event_tpl_console = function(){  
    console.log(‘This is console!‘);  
}  
 
// 最好在页面加载完之前调用，也就是在window.onload()之前  
hook.init();