Javascript 循环遍历对象和未知数量的子对象
我需要遍历以下对象,并为每个子对象运行一个函数。基本上我想从对象生成HTML,所以对象中的子对象显然是HTML中的子对象 因此,目标:Javascript 循环遍历对象和未知数量的子对象,javascript,html,Javascript,Html,我需要遍历以下对象,并为每个子对象运行一个函数。基本上我想从对象生成HTML,所以对象中的子对象显然是HTML中的子对象 因此,目标: var html = { 'div' : { 'id': 'marvLightbox__container', 0: { 'div': { 'class': 'marvLightbox__left', 'event_click': 'left' } }, 1: {
var html = {
'div' : {
'id': 'marvLightbox__container',
0: {
'div': {
'class': 'marvLightbox__left',
'event_click': 'left'
}
},
1: {
'div': {
'class': 'marvLightbox__right',
'event_click': 'right'
}
},
2: {
'div': {
'class': 'marvLightbox',
0: {
'div': {
'class': 'marvLightbox__eschint',
'content': 'Press <span>ESC</span> to close'
},
'div': {
'class': 'marvLightbox__close',
'event_click': 'close'
},
'img': {
'src': '/img-src/_themev2-knightsbridgecars-1544/making-of/making-004.jpg',
'class': 'responsive-img'
}
}
}
}
}
}
这是我目前拥有的代码,但是它没有深入到对象中,并且输出不正确
Object.size = function(obj) {
var size = 0, key;
for (key in obj) {
if (obj.hasOwnProperty(key)) size++;
}
return size;
};
function allDescendants (node, n) {
var i = 0;
for (var property in node) {
var child = node[property];
console.log(property);
if (Object.size(child) > 1) {
allDescendants(child, i);
}
i++;
//allDescendants(child, i);
doSomethingToNode(child, i);
}
}
function doSomethingToNode(node, n) {
console.log(n + ': ' + node);
}
allDescendants(html);
这是上面代码当前输出的内容,我将在下面放置一个代码笔,以便您可以更轻松地进行测试:
marv.lightbox.js:141 div
marv.lightbox.js:141 0
marv.lightbox.js:151 1
marv.lightbox.js:152 Object {div: Object}
marv.lightbox.js:141 1
marv.lightbox.js:151 2
marv.lightbox.js:152 Object {div: Object}
marv.lightbox.js:141 2
marv.lightbox.js:151 3
marv.lightbox.js:152 Object {div: Object}
marv.lightbox.js:141 id
marv.lightbox.js:141 0
marv.lightbox.js:151 1
marv.lightbox.js:152 m
marv.lightbox.js:141 1
marv.lightbox.js:151 2
marv.lightbox.js:152 a
marv.lightbox.js:141 2
marv.lightbox.js:151 3
marv.lightbox.js:152 r
marv.lightbox.js:141 3
marv.lightbox.js:151 4
marv.lightbox.js:152 v
marv.lightbox.js:141 4
marv.lightbox.js:151 5
marv.lightbox.js:152 L
marv.lightbox.js:141 5
marv.lightbox.js:151 6
marv.lightbox.js:152 i
marv.lightbox.js:141 6
marv.lightbox.js:151 7
marv.lightbox.js:152 g
marv.lightbox.js:141 7
marv.lightbox.js:151 8
marv.lightbox.js:152 h
marv.lightbox.js:141 8
marv.lightbox.js:151 9
marv.lightbox.js:152 t
marv.lightbox.js:141 9
marv.lightbox.js:151 10
marv.lightbox.js:152 b
marv.lightbox.js:141 10
marv.lightbox.js:151 11
marv.lightbox.js:152 o
marv.lightbox.js:141 11
marv.lightbox.js:151 12
marv.lightbox.js:152 x
marv.lightbox.js:141 12
marv.lightbox.js:151 13
marv.lightbox.js:152 _
marv.lightbox.js:141 13
marv.lightbox.js:151 14
marv.lightbox.js:152 _
marv.lightbox.js:141 14
marv.lightbox.js:151 15
marv.lightbox.js:152 c
marv.lightbox.js:141 15
marv.lightbox.js:151 16
marv.lightbox.js:152 o
marv.lightbox.js:141 16
marv.lightbox.js:151 17
marv.lightbox.js:152 n
marv.lightbox.js:141 17
marv.lightbox.js:151 18
marv.lightbox.js:152 t
marv.lightbox.js:141 18
marv.lightbox.js:151 19
marv.lightbox.js:152 a
marv.lightbox.js:141 19
marv.lightbox.js:151 20
marv.lightbox.js:152 i
marv.lightbox.js:141 20
marv.lightbox.js:151 21
marv.lightbox.js:152 n
marv.lightbox.js:141 21
marv.lightbox.js:151 22
marv.lightbox.js:152 e
marv.lightbox.js:141 22
marv.lightbox.js:151 23
marv.lightbox.js:152 r
marv.lightbox.js:151 4
marv.lightbox.js:152 marvLightbox__container
marv.lightbox.js:151 1
marv.lightbox.js:152 Object {0: Object, 1: Object, 2: Object, id: "marvLightbox__container"}
>首先,我会考虑重构你的数据以利用数组,这会使遍历变得更容易。
var html = {
'id': 'marvLightbox__container',
'children' : [
{
'class': 'marvLightbox__left',
'event_click': 'left'
},
{
'class': 'marvLightbox__right',
'event_click': 'right'
},
{
'class': 'marvLightbox',
'children': [
{
'class': 'marvLightbox__eschint',
'content': 'Press <span>ESC</span> to close'
},
{
'class': 'marvLightbox__close',
'event_click': 'close'
},
{
'src': '/img-src/_themev2-knightsbridgecars-1544/making-of/making-004.jpg',
'class': 'responsive-img'
}
]
}
]
}
首先,我会考虑使用数组来重构数据,这会使遍历变得更容易。
var html = {
'id': 'marvLightbox__container',
'children' : [
{
'class': 'marvLightbox__left',
'event_click': 'left'
},
{
'class': 'marvLightbox__right',
'event_click': 'right'
},
{
'class': 'marvLightbox',
'children': [
{
'class': 'marvLightbox__eschint',
'content': 'Press <span>ESC</span> to close'
},
{
'class': 'marvLightbox__close',
'event_click': 'close'
},
{
'src': '/img-src/_themev2-knightsbridgecars-1544/making-of/making-004.jpg',
'class': 'responsive-img'
}
]
}
]
}
假设您可以从JSON字符串开始,那么您可以使用自定义的
恢复程序函数来简化操作:
var htmlJson=`{
“部门”:{
"0": {
“部门”:{
“类”:“marvLightbox__________________左”,
“单击事件”:“左”
}
},
"1": {
“部门”:{
“类”:“marvLightbox(右)”,
“单击事件”:“右键”
}
},
"2": {
“部门”:{
"0": {
“部门”:{
“类”:“marvLightbox_uuuEschint”,
“内容”:“按ESC键关闭”
}
},
"1": {
“部门”:{
“类”:“marvLightbox\uuuuu close”,
“事件\单击”:“关闭”
}
},
"2": {
“img”:{
“src”:“/img src/_themev2-knightsbridgecars-1544/making of/making-004.jpg”,
“类别”:“响应式img”
}
},
“类别”:“marvLightbox”
}
},
“id”:“marvLightbox\uuuu容器”
}
}`;
函数handleAttribute(元素、属性、值){
if(HtmleElement的值实例){
返回元素.appendChild(值);
}
开关(属性){
案例“类”:
案例'src':
案件编号:
返回元素.setAttribute(属性,值);
案例“内容”:
return element.innerHTML=值;
//其他键。。。
违约:
console.log(element.tagName、属性、值);
}
}
函数HTMLEVIVER(键、值){
//解析为元素
如果(isNaN(键)&&typeof值==='object'){
var元素=document.createElement(键);
var子值;
for(值中的var属性){
handleAttribute(元素、属性、值[属性]);
}
返回元素;
//将元素从{index:{tagName:element}}移动到{index:element}
}如果(!isNaN(键)){
返回值[Object.keys(值)[0]];
//别管财产
}否则{
返回值;
}
}
var htmlObject=JSON.parse(htmlJson,htmleviver);
console.log(htmlObject);
document.body.appendChild(htmlObject)代码>假设您可以改为以JSON字符串开始,您可以使用自定义的恢复程序
函数来简化操作:
var htmlJson=`{
“部门”:{
"0": {
“部门”:{
“类”:“marvLightbox__________________左”,
“单击事件”:“左”
}
},
"1": {
“部门”:{
“类”:“marvLightbox(右)”,
“单击事件”:“右键”
}
},
"2": {
“部门”:{
"0": {
“部门”:{
“类”:“marvLightbox_uuuEschint”,
“内容”:“按ESC键关闭”
}
},
"1": {
“部门”:{
“类”:“marvLightbox\uuuuu close”,
“事件\单击”:“关闭”
}
},
"2": {
“img”:{
“src”:“/img src/_themev2-knightsbridgecars-1544/making of/making-004.jpg”,
“类别”:“响应式img”
}
},
“类别”:“marvLightbox”
}
},
“id”:“marvLightbox\uuuu容器”
}
}`;
函数handleAttribute(元素、属性、值){
if(HtmleElement的值实例){
返回元素.appendChild(值);
}
开关(属性){
案例“类”:
案例'src':
案件编号:
返回元素.setAttribute(属性,值);
案例“内容”:
return element.innerHTML=值;
//其他键。。。
违约:
console.log(element.tagName、属性、值);
}
}
函数HTMLEVIVER(键、值){
//解析为元素
如果(isNaN(键)&&typeof值==='object'){
var元素=document.createElement(键);
var子值;
for(值中的var属性){
handleAttribute(元素、属性、值[属性]);
}
返回元素;
//将元素从{index:{tagName:element}}移动到{index:element}
}如果(!isNaN(键)){
返回值[Object.keys(值)[0]];
//别管财产
}否则{
返回值;
}
}
var htmlObject=JSON.parse(htmlJson,htmleviver);
console.log(htmlObject);
document.body.appendChild(htmlObject)代码>首先,此结构中的对象将无法工作,因为同一对象中有重复的属性,如下所示:
这段代码我只是把它放在x
变量中
var x = {
'div': {
'class': 'marvLightbox__eschint',
'content': 'Press <span>ESC</span> to close'
},
'div': {
'class': 'marvLightbox__close',
'event_click': 'close'
}
}
因此您需要更改对象的结构
以使其比当前结构更好
对于您需要使用的这一点,这将帮助您在同一级别复制元素,而不会出现任何问题
我制作了一个简单的结构并为您的对象实现它,您可以使用另一个结构,但仍然需要更改当前结构
此代码===您当前的代码,但在其他结构中
var html=[{
“标签”:“div”,
“属性”:{
“id”:“marvLightbox\uuuu容器”
},
“文本”:“,
“儿童”:[
{
“标签”:“div”,
“属性”:{
“类”:“marvLightbox__________________左”,
“单击事件”:“左”
},
“text”:“”,
“儿童”:[]
},
{
“标签”:“div”,
“属性”:{
“类”:“marvLightbox(右)”,
“单击事件”:“右键”
},
“文本”:“,
“儿童”:[]
},
{
“标签”:“di
var x = {
'div': {
'class': 'marvLightbox__eschint',
'content': 'Press <span>ESC</span> to close'
},
'div': {
'class': 'marvLightbox__close',
'event_click': 'close'
}
}
var x = {
'div': {
'class': 'marvLightbox__close',
'event_click': 'close'
}
}
var html = [{
"tag": "div",
"attributes": {
"id": "marvLightbox__container"
},
"text": "",
"children": [
{
"tag": "div",
"attributes": {
"class": "marvLightbox__left",
"event_click": "left"
},
"text": "",
"children": []
},
{
"tag": "div",
"attributes": {
"class": "marvLightbox__right",
"event_click": "right"
},
"text": "",
"children": []
},
{
"tag": "div",
"attributes": {
"class": "marvLightbox"
},
"text": "",
"children": [
{
"tag": "div",
"attributes": {
"class": "marvLightbox__eschint"
},
"text": "Press <span>ESC</span> to close",
"children": []
},
{
"tag": "div",
"attributes": {
"class": "marvLightbox__eschint"
},
"text": "Press <span>ESC</span> to close",
"children": []
},
{
"tag": "div",
"attributes": {
"class": "marvLightbox__close",
"event_click": "close"
},
"text": "",
"children": []
},
{
"tag": "img",
"attributes": {
"src": "/img-src/_themev2-knightsbridgecars-1544/making-of/making-004.jpg",
"class": "responsive-img"
},
"text": "",
"children": []
}
]
}
]
}];