Angular2：ts - 提供的參數與調用目標的任何簽名不匹配

Question

下面是具有根據我的業務需要更改行，列的邏輯的代碼。當我把這個代碼，在我的Angular2 TS的代碼，我正在提供的參數根本不.forEach（符合調用對象的任何錯誤簽名......

var data = [{ Id: "a", ColumnLocation: "0", RowLocation: "0" }, { Id: "b", ColumnLocation: "0", RowLocation: "1" }, { Id: "4", ColumnLocation: "0", RowLocation: "3" }, { Id: "c", ColumnLocation: "1", RowLocation: "0" }, { Id: "d", ColumnLocation: "1", RowLocation: "2" }, { Id: "e", ColumnLocation: "2", RowLocation: "0" }, { Id: "e", ColumnLocation: "2", RowLocation: "2" }]; 

data.forEach(function (col, row) { 
       return function (o) { 
        if (col !== o.ColumnLocation) { 
         col = o.ColumnLocation; 
         row = 0; 
        } 
        if (+o.RowLocation !== row) { 
         o.RowLocation = row.toString(); 
        } 
        row++; 
       } 
      }()); 

Answer 1

至於爲了使用自執行的函數中提到他人與參數，你需要提供這些參數。

let myCol; // or you can set this to an initial value 
let myRow; 

data.forEach(function (col, row) { 
      return function (o) { 
       // your logic here 
      }; 
     }(myCol, myRow)); 

您的打字稿編譯器是抱怨，因爲你的函數有兩個參數col和row但你不帶任何參數調用它。