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原生js实现jquery的getJSON方法

2013-04-26 11:37 846 查看

用原生JavaScript实现jQuery的$.getJSON

$ = {
getJSON:function(url,data,callback){
var call = this.urlQueryString(url)["callback"];
for(var key in data){
url += "&"+key+"="+data[key];
}
//window[call] = callback;
window[call] = function(data){
window[call] = undefined;
try{
delete window[call];
}catch(e){}
callback(data);
}
var script = document.createElement("script");
script.type = "text/javascript";
script.src = url;
document.getElementsByTagName("body")[0].appendChild(script);
script.onload = function(){
document.getElementsByTagName("body")[0].removeChild(this);
}
},
urlQueryString:function(url){//scoreRecode.php?callback11=callajax11&callback=callajax
var url = url.split("?")[1];
var result = {},reg = /([^&=]+)=([^&]*)/g,m;
while(m = reg.exec(url)){
result[m[1]] = m[2];
}
return result;//Object {callback11: "callajax11", callback: "callajax"}
}
};
$.getJSON("aa.php?callback11=callajax11&callback=callajax",{"aa":11,"bb":22},function(data){
console.log(data);
});


转载自:/article/4879415.html
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