Javascript 在json树中按id查找节点

我想将

子数组添加到节点，其中
id=52126f7d
（或其他）。我该怎么做

var children = [
  { name: 'great-granchild3',
    id: '2a12a10h'
  },
  { name: 'great-granchild4',
    id: 'bpme7qw0'
  }
]

// json tree
var objects = {
  name: 'all objects',
  id:"2e6ca1c3",      
  children: [
     {
         name: 'child',
         id: "6c03cfbe",
         children: [                 
             { name: 'grandchild1',
               id: "2790f59c"
             },
             { name: 'grandchild2',
               id: "52126f7d"
             },
             { name: 'grandchild3',
               id: "b402f14b" 
             },
             {
               name: 'grandchild4',
               id: "6c03cff0",
               children: [
                 { name: 'great-grandchild1',
                   id: "ce90ffa6"
                 },
                 { name: 'great-grandchild2',
                   id: "52f95f28" 
                 }
              ]
            }
         ]
    },        
     {
       name: 'child2',
       id: "7693b310",
       children: [
          { name: 'grandchild5',
            id: "def86ecc"  
          },
          { name: 'grandchild6',
            id: "6224a8f8"
          }
       ]
    }
 ]
}

到头来

var objects = {
  name: 'all objects',
  id:"2e6ca1c3",      
  children: [
     {
         name: 'child',
         id: "6c03cfbe",
         children: [                 
             { name: 'grandchild1',
               id: "2790f59c"
             },
             { name: 'grandchild2',
               id: "52126f7d",
               children = [
                 { name: 'great-granchild3',
                   id: '2a12a10h'
                 },
                 { name: 'great-granchild4',
                   id: 'bpme7qw0'
                 }
               ]
             },
             { name: 'grandchild3',
               id: "b402f14b" 
             },
             {
               name: 'grandchild4',
               id: "6c03cff0",
               children: [
                 { name: 'great-grandchild1',
                   id: "ce90ffa6"
                 },
                 { name: 'great-grandchild2',
                   id: "52f95f28" 
                 }
              ]
            }
         ]
    },        
     {
       name: 'child2',
       id: "7693b310",
       children: [
          { name: 'grandchild5',
            id: "def86ecc"  
          },
          { name: 'grandchild6',
            id: "6224a8f8"
          }
       ]
    }
 ]
}

那么：

objects.children[0].children[1].children = children;

首先找到合适的节点

function getNodeById(id, node){
    var reduce = [].reduce;
    function runner(result, node){
        if(result || !node) return result;
        return node.id === id && node || //is this the proper node?
            runner(null, node.children) || //process this nodes children
            reduce.call(Object(node), runner, result);  //maybe this is some ArrayLike Structure
    }
    return runner(null, node);
}

var target = getNodeById("52126f7d", objects);
target.children = children;

可能的双重目标是单独的变量。如何在现有的
对象中插入
目标
？您不必插入它，它是对具有该id的特定节点的引用。此节点已在对象中。我想获得包含
目标
节点的完整树。我编辑了这个问题，请再看一遍。你们有并没有尝试执行我的例子？在我看来，你似乎对变量、对象和引用等基本概念缺乏理解。请尝试执行我的示例，然后告诉我它不起作用，您得到了什么结果，以及您期望的结果。请注意，getNodeById（）可能返回null，如果它找不到匹配的节点，那么您的函数将中断，因为您无法处理此情况。