有关js动态绑定事件
//为元素绑定事件 function addEvent(elem,type,fn){ if(window.addEventLister){ elem.addEventLister(type,fn,false); } else if(window.attachEvent){ elem.attachEvent("on"+type,fn); } else{ elem["on" + type] = fn; } }
//将元素和方法放到数组arrelems中 function bind(elem,fn){ var arrtmp = new Array(); arrtmp.push(elem) arrtmp.push(fn); arrelems.push(arrtmp); }
//遍历元素 function etype(type){ for(var i=0;i<arrelems.length;i++){ if(document.getElementById(arrelems[i][0])!=="undefined"&&document.getElementById(arrelems[i][0])!==null){ addEvent(document.getElementById(arrelems[i][0]),type,arrelems[i][1]) } } } //绑定事件 function elemtype(type){ var body = document.getElementsByTagName("body")[0]; etype(type); addEvent(body,type,function(){ etype(type); }); }
demo：
<!DOCTYPE html> <html> <head> <title>动态绑定事件</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <input id="btn1" type="button" value="确定" /> <div id="test">TODO write content</div> <div><span id="msg0">测试</span></div> <script type="text/javascript"> var arrelems = new Array(); //为元素绑定事件 function addEvent(elem,type,fn){ if(window.addEventLister){ elem.addEventLister(type,fn,false); } else if(window.attachEvent){ elem.attachEvent("on"+type,fn); } else{ elem["on" + type] = fn; } } //将元素和方法放到数组arrelems中 function bind(elem,fn){ var arrtmp = new Array(); arrtmp.push(elem) arrtmp.push(fn); arrelems.push(arrtmp); } //遍历元素 function etype(type){ for(var i=0;i<arrelems.length;i++){ if(document.getElementById(arrelems[i][0])!=="undefined"&&document.getElementById(arrelems[i][0])!==null){ addEvent(document.getElementById(arrelems[i][0]),type,arrelems[i][1]) } } } //绑定事件 function elemtype(type){ var body = document.getElementsByTagName("body")[0]; etype(type); addEvent(body,type,function(){ etype(type); }); } </script> <script type="text/javascript"> var arrhtml = ['<span id="msg1">测试一</span>']; var btn1 = document.getElementById("btn1"); addEvent(btn1,"click",function(){ document.getElementById("test").innerHTML = arrhtml[0]; }); bind("msg0",function(){ console.log("测试000000被点击了"); }); bind("msg1",function(){ console.log("测试1111111111被点击了"); }); elemtype("click"); </script> </body> </html>
