js 版的var_dump

转贴:

function var_dump(obj) {
    if(typeof obj== "object") {
       var txt = '';
       for(key in obj)  txt +=key + '=' + obj[key] + ',';
        return "Type: "+typeof(obj)+((obj.constructor) ? "/nConstructor: "+obj.constructor : "")+"/nValue: " + txt;
    } else {
       return "Type: "+typeof(obj)+"/nValue: "+obj;
   }
}

function resize_iframe(iframe){

  ibody = iframe.contentWindow.document.body;
  clipboardData.setData("text", var_dump(ibody));

}