嵌套ng-repeat用于多维数组

本文介绍了嵌套ng-repeat用于多维数组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在尝试使用ng-repeat指令在html中显示二维数组.我可以显示第一个维度(表行)，但第二个维度(表数据)不起作用.我已经看到了许多使用对象，JSON，键值数据结构的解决方案...但是我找不到仅适用于包含其他数组的数组的某些解决方案.这是一些失败的尝试.

HTML:(无效)

I am trying to display a bi-dimensional array in html using the ng-repeat directive. I can display the first dimension ( table rows) but the second (table datas) is not working. I have seen a lot of solutions using objects, JSON, key-values data structures... But I can't find something that work for just an array containing others arrays. Here are some unsuccessful attempts.

HTML: (does't work)

<div ng-app = "grid" ng-controller = "gridCtrl">
    <table>
        <tr ng-repeat = "y in grid">
            <td ng-repeat = "x in y"></td>
        </tr>
    </table>
</div>

HTML:(无效)

<div ng-app = "grid" ng-controller = "gridCtrl">
    <table>
        <tr ng-repeat = "y in grid">
            <td ng-repeat = "x in grid[$index]"></td>
        </tr>
    </table>
</div>

JS:

var grid = angular.module("grid", []);
grid.controller("gridCtrl", function($scope)
{
    $scope.grid = [[empty, empty, empty, empty, empty],
                   [empty, empty, empty, empty, empty],
                   [empty, empty, empty, empty, empty],
                   [empty, empty, empty, empty, empty],
                   [empty, empty, empty, empty, empty]];
});

推荐答案

工作示例:

HTML:

<!DOCTYPE html>
<html ng-app="plunker">

<head>
  <meta charset="utf-8" />
  <title>AngularJS Plunker</title>
  <script>
    document.write('<base href="' + document.location + '" />');
  </script>
  <script data-require="angular.js@1.4.x" src="https://code.angularjs.org/1.4.9/angular.js" data-semver="1.4.9"></script>
  <script src="app.js"></script>
</head>

<body ng-controller="MainCtrl">
  <p>Hello {{name}}!</p>
  <div>
    <table>
      <tr ng-repeat="y in grid">
        <td ng-repeat="x in y track by $index">{{x}}</td>
      </tr>
    </table>
  </div>
</body>

</html>

JS:

var app = angular.module('plunker', []);

app.controller('MainCtrl', function($scope) {
  $scope.name = 'World';
  $scope.grid = [["empty", "empty", "empt", "empt", "empty"],
                  ["empty", "empty", "empt", "empt", "empty"]];
});

演示: http://plnkr.co/edit/yVC5nrH5Pv3Zzp8Py7FH?p=preview

由于您的数组数据包含重复项，因此您想添加track by作为唯一ID，因此我已经添加了track by $index关于此 https://docs.angularjs.org/error/ngRepeat/dupes

As your array data contains duplicate you want to add track by for unique id so i had added track by $index more about this https://docs.angularjs.org/error/ngRepeat/dupes

这篇关于嵌套ng-repeat用于多维数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！