誤差鑑於

Question

明確實例化一個商店，我有鑑於這樣的：

Ext.define('MyApp.view.CustomersList', { 
    extend: 'Ext.grid.Panel', 

    store: Ext.create('MyApp.store.Customers'), 

    columns: [ 
     { 
      width: 150, 
      dataIndex: 'customerName', 
      text: 'CustomerName' 
     }, 
     { 
      width: 200, 
      dataIndex: 'customerNumber', 
      flex: 1, 
      text: 'CustomerNumber' 
     } 
    ] 
}); 

我實例化一個商店明確，但是當我加載在視口中這個觀點，我覺得這樣的錯誤：

Uncaught TypeError: Expecting a function in instanceof check, but got function constructor() { 
     // Opera has some problems returning from a constructor when Dragonfly isn't running. The || null seems to 
     // be sufficient to stop it misbehaving. Known to be required against 10.53, 11.51 and 11.61. 
     return this.constructor.apply(this, arguments) || null; 
    } 

Uncaught TypeError: Expecting a function in instanceof check, but got function constructor() { 
     // Opera has some problems returning from a constructor when Dragonfly isn't running. The || null seems to 
     // be sufficient to stop it misbehaving. Known to be required against 10.53, 11.51 and 11.61. 
     return this.constructor.apply(this, arguments) || null; 
    } 

Answer 1

Ext.define('MyApp.view.CustomersList', { 
     extend: 'Ext.grid.Panel', 

     initComponent: function(){ 
     this.store = Ext.create('MyApp.store.Customers'); 

     this.columns = [ 
     { 
     width: 150, 
     dataIndex: 'customerName', 
     text: 'CustomerName' 
     }, 
     { 
     width: 200, 
     dataIndex: 'customerNumber', 
     flex: 1, 
     text: 'CustomerNumber' 
     }] 
    this.callParent(); 
    } 
    }); 

希望它有幫助！