angular.js - angular filter 对数组过滤时，排除arr[0]怎么做？

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>

二维数组里面的第一列不显示，所以在搜索的时候需要排除arri，如果我输入1，两列都有的，但是我想输入1只显示arr[0]，怎么做啊？我将filter写成函数，但是没搞定

Answer 1

用arr.slice(1, arr.length)

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

好吧，题看错了，加个map就好

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

由于angular expression不支持函数声明，你需要把这段写在controller里并重新赋值给$scope.arr