Ext.Msg.confirm收集數據的順序

Question

例如我有5條記錄。我應該問用戶確認下一步操作，

 var data = []; 
    Ext.Msg.confirm('Confirm', String.format('Are you sure about {0} record?', 
        product['id']), 
        function (btn){ 
         if(btn=='yes') data.push(product['id']); 

        } 
    }); 

// here I want to get collected data 
console.log(data); // gives [] - empty 

Answer 1

ExtJS的消息框是asycronous，所以你的代碼中加入該產品是正確的，但要收取一部分是錯誤的。該部分在您確認之前執行。所以，你應該添加的功能在哪裏，也許收集數據，並從在MessageBox確認的回調方法調用它：

var data = []; 
function confirm(id){ 
    Ext.Msg.confirm('Confirm', String.format('Are you sure about {0} record?', 
        product['id']), 
        function (btn){ 
         if(btn=='yes') { 
          data.push(product['id']); 
         } 
         if (id<4){ //or some terminal condition you have 
          confirm(newId) //show confirm for new id or next.. 
         } else { 
          collectData(data); 
         }  
        } 
    ); 
} 
function collectData (data){ 
// here I want to get collected data 
console.log(data); // gives [] - empty 
}