angularjs – 在ng-repeat中显示具有重复出现次数的唯一项目

[{"brand":"abc"},{"brand":"xyz"},{"brand":"abc"},{"brand":"por"},{"brand":"xyz"}]

Brand Occurances
abc      (3)
xyz      (2)
por      (1)

您可以创建一个自定义函数,该函数将使用repeatvie值从现有数组返回计数(出现)

与过滤器一起显示JSON中的唯一值：

$scope.getCount = function(i) {
    var iCount = iCount || 0;
    for (var j = 0; j < $scope.brands.length; j++) {
      if ($scope.brands[j].brand == i) {
        iCount++;
      }
    }
    return iCount;
  }

AND过滤器将如下所示：

app.filter('unique',function() {

  return function (arr,field) {
    var o = {},i,l = arr.length,r = [];
    for(i=0; i<l;i+=1) {
      o[arr[i][field]] = arr[i];
    }
    for(i in o) {
      r.push(o[i]);
    }
    return r;
  };
})

Working Plunkr

@H_801_2@ @H_801_2@