angular.js - angular filter 過濾陣列時，排除arr[0]怎麼做？

Question

js:
$scope.arr = [
["212","上","下","左","右"],
["12","1","2","3","4"],
]

html:
<input type="text" ng-model="text">

<tr ng-repeat="dataTr in arr | filter:text">
    <td ng-repeat="dataTd in dataTr">
    <ng-switch on="$first">
        <span ng-switch-when="true">{{index+1}}</span>
        <span ng-switch-default>{{dataTd}}</span>
    </ng-switch>
    </td>
</tr>

二維數組裡面的第一列不顯示，所以在搜尋的時候需要排除arri，如果我輸入1，兩列都有的，但是我想輸入1只顯示arr[0]，怎麼做啊？我將filter寫成函數，但沒搞定

Answer 1

用arr.slice(1, arr.length)

<tr ng-repeat="dataTr in arr.slice(1, arr.length) | filter:text">

好吧，題看錯了，加map就好

arr.map(function (subArr) {
  return subArr.slice(1, subArr.length);
});

由於angular expression不支援函數聲明，你需要把這段寫在controller裡並重新賦值給$scope.arr