如何为嵌套对象数组中的子对象添加值
我有一个嵌套的对象数组，我需要动态更改子数据的值
[
{
type: "root",
title: "FileManager",
isDirectory: true,
children: [
{
type: "folder",
title: "animals",
isDirectory: true,
children: [
{
type: "folder",
title: "cat",
isDirectory: true,
children: [
{
type: "folder",
title: "images",
isDirectory: true,
children: [
{
type: "file",
title: "cat001.jpg",
isDirectory: false,
}, {
type: "file",
title: "cat002.jpg",
isDirectory: false,
}
]
}
]
}
]
},
{
type : "folder",
title : 'Birds',
isDirectory : true,
children : []
}
]
}
]
这是我的主要对象数组，假设我想动态更改子对象的值。假设我想向图像数组中的子对象添加一个对象，因此图像数组的路径是 FileManager / Animals / cat / images 如何动态更改图像对象中子对象的值？
ABOUTYOU1回答
-
幕布斯6054654
根据提供的数据结构，您可以使用递归解决方案来到达您感兴趣的嵌套数组，然后当递归命中时，base case您可以将新对象推入该特定深度级别的数组中，或者使用一个回调函数，将尽可能多的新对象推入其中。我不太确定您所指的“动态”部分，但以下内容应该使您朝着正确的方向前进：function rec(array) { for (let i in array) { if (array[i].children === undefined) { // BASE CASE // console.log("base case ", array); // push the object you want into the array, as at this point in the // recursion you will be at the level you can modify your image array as you like return array.push({ "myImage": "myBeautifulCatImage", "does": "poooooor"}); } // recursive call // visualise how deep you are going... // console.log("rec", array[i].children); return rec(array[i].children); }}rec(arr);// if you know log your arr as in:// console.log("arr after recursion", rec(arr))// you will see your new cat showing where it should be :)如果此答案可以帮助您解决问题，请考虑接受答案或投票。谢谢。
随时随地看视频慕课网APP
相关分类
JavaScript