Json字符串转换为JS对象的高效方法实例

  //Makesureleading/trailingwhitespaceisremoved(IEcan"thandleit)
  data=jQuery.trim(data);

  //MakesuretheincomingdataisactualJSON
  //Logicborrowedfromhttp://json.org/json2.js
  if(/^[/],:{}/s]*$/.test(data.replace(///(?:["////bfnrt]|u[0-9a-fA-F]{4})/g,"@")
   .replace(/"[^"///n/r]*"|true|false|null|-?/d+(?:/./d*)?(?:[eE][+/-]?/d+)?/g,"]")
   .replace(/(?:^|:|,)(?:/s*/[)+/g,""))){

   //TrytousethenativeJSONparserfirst
   returnwindow.JSON&&window.JSON.parse?
    window.JSON.parse(data):
    (newFunction("return"+data))();

  }else{
   jQuery.error("InvalidJSON:"+data);
  }
 }