addData()没有成功

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>IndexedDB</title>
</head>
<body>

    <script>
     var dbName="testDB",
         version=3,
         storeName='os1';

     function openDB(name){
     version=version||1;
   
     var request=window.indexedDB.open(name,version);
     request.onerror=function(e){
     console.log(e.currentTarget.error.message);
     }
     request.onsuccess=function(e){
     var db=request.result;//这里才是indexDB对象
     console.log('open success');
     }
   
     request.onupgradeneeded=function(e){
     var db=request.result;
     if(!db.ObjectStoreName.contains('os1')){
     db.createObjectStore('os1',{keyPath:"id"})
     }
     console.log('DB version changed to'+version);
     }
     }

     openDB(dbName,version);

     var data=[{
     name:'史莱姆',
     id:'001',
     hp:3,
     category:['怪物','容易逃跑']
     },{
     name:'小蝙蝠',
     id:'002',
     hp:5,
     category:['怪物','飞行']
     },{
     name:'小恶魔',
     id:'003',
     hp:9,
     category:['怪物','恶魔']
     }]

     function addData(db,storeName){
     var transaction=db.transaction(storeName,'readwrite');
     var store=transaction.ObjectStore(storeName);
     for(var i=0;i<data.length;i++){
     store.add(data[i]);
     }
     }

   




    </script>
</body>
</html>

慕粉6557610 2018-02-28

源自：HTML5存储 2-7 indexDB（1）