Question

我有两个数组，比如

var array1 = [{group_name: "Gp HQ, Hyderabad", group_id: "1"},
              {group_name: "Gp HQ, Secunderabad", group_id: "2"},
              {group_name: "Group HQ, Guntur", group_id: "3"}];


var array2 = [
  {unit_total: 1, branch_name: "1 (T) Air Sqn", branch_group_id: "1", branch_id: "6"},
  {unit_total: 1, branch_name: "1 (T) Arty Bty", branch_group_id: "1", branch_id: "5"},
  {unit_total: 3, branch_name: "1 (T) Bn", branch_group_id: "1", branch_id: "1"}, 
  {unit_total: 1, branch_name: "1 (T) R&V Regt", branch_group_id: "1", branch_id: "4"},
  {unit_total: 3, branch_name: "3 (T) Bn", branch_group_id: "1", branch_id: "2"}];

这里array2是多级数组，下一个值将包含group_id 2，如下所示

我想将array2值推送到array1，其键名如下所示

var result_array = [{group_id:1, group_name:test_group, child_array:[
                     {unit_total: 1, branch_name: "1 (T) Air Sqn", branch_group_id: "1", branch_id: "6"},
                     {unit_total: 1, branch_name: "1 (T) Arty Bty", branch_group_id: "1", branch_id: "5"},
                     {unit_total: 3, branch_name: "1 (T) Bn", branch_group_id: "1", branch_id: "1"}, 
                     {unit_total: 1, branch_name: "1 (T) R&V Regt", branch_group_id: "1", branch_id: "4"},
                     {unit_total: 3, branch_name: "3 (T) Bn", branch_group_id: "1", branch_id: "2"}},

                    {group_id:2, group_name:test_group, child_array:[
                     {unit_total: 1, branch_name: "1 (T) Air Sqn", branch_group_id: "2", branch_id: "6"},
                     {unit_total: 1, branch_name: "1 (T) Arty Bty", branch_group_id: "2", branch_id: "5"},
                     {unit_total: 3, branch_name: "1 (T) Bn", branch_group_id: "2", branch_id: "1"}, 
                     {unit_total: 1, branch_name: "1 (T) R&V Regt", branch_group_id: "2", branch_id: "4"},
                     {unit_total: 3, branch_name: "3 (T) Bn", branch_group_id: "2", branch_id: "2"}}

]];

我怎样才能做到这一点。我也尝试过使用array_push和concat方法，但没有运气。请让我知道如何做到这一点。提前致谢

Answer 1

您可以遍历array1并使用array.filter填充child_array：

＆＃13;

var array1 = [ 
  { group_id: "1", group_name: 'test_group1' },
  { group_id: "2", group_name: 'test_group1' }
];

var array2 = [
  {unit_total: 1, branch_name: "1 (T) Air Sqn", branch_group_id: "1", branch_id: "6"},
  {unit_total: 1, branch_name: "1 (T) Arty Bty", branch_group_id: "1", branch_id: "5"},
  {unit_total: 3, branch_name: "1 (T) Bn", branch_group_id: "2", branch_id: "1"}, 
  {unit_total: 1, branch_name: "1 (T) R&V Regt", branch_group_id: "1", branch_id: "4"},
  {unit_total: 3, branch_name: "3 (T) Bn", branch_group_id: "2", branch_id: "2"}];
  
array1.forEach(group => group.child_array = array2.filter(e => e.branch_group_id === group.group_id));

console.log(array1);

＆＃13;

将一个数组作为键，使用javascript将值推送到其他数组

1 个答案: