爲什麼在清晰定義時會爲DivisionCollection收到「未定義」錯誤？

Question

爲什麼在明確定義DivisionCollection時會得到'未定義'錯誤？

DivisionRepository = { 
    DivisionCollection: [], //Defined here 

    GetNewDivisionId: function() { 
     var newDivisionId = 0; 
     for(var i = 0; i < DivisionCollection.length; i++) { //Pukes here 
      if(DivisionCollection[i].DivisionId >= newDivisionId) 
       newDivisionId = DivisionCollection[i].DivisionId + 1; 
     } 

     return newDivisionId; 
    } 
} 

Answer 1

DivisionCollection前加this.，你出的範圍。