Javascript 将对象转换为ul li元素
我有一个数组中的对象列表Javascript 将对象转换为ul li元素,javascript,jquery,html,arrays,Javascript,Jquery,Html,Arrays,我有一个数组中的对象列表 var myLevel = ['sub', 'topic', 'type'] var myCollection = new Array(); myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'}); myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'}); myCollection.push({sub: 'Book 1
var myLevel = ['sub', 'topic', 'type']
var myCollection = new Array();
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 1', type: 'fib', topic: 'topic 2'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mtf'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 2', type: 'mcq', topic: 'topic 1'});
myCollection.push({sub: 'Book 2', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 2', topic: 'topic 1', type: 'mcq'});
我想用ul和li将这些东西转换成适当的列表,并且列表的级别取决于myLevel变量。
- 第一册
- 专题1
- mcq
- mtf
- 专题2
- 小谎
- 专题1
- 第二册
- 专题1
- mcq
- 专题1
for(var i=0; i<myCollection.length; i++)
{
for(var j=0; j<myLevel.length; j++)
{
createMyTree(myCollection[i][myLevel[j]);
}
}
function createMyTree(str)
{
//?????????????
}
for(var i=0;i好的,所以我重新编辑了它,它可以工作,除非有一个问题:主题1 get被拆分为两个主题1,因为主题2 get插入了它们之间
var myLevel = ['sub', 'topic', 'type'];
var myCollection = new Array();
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 1', type: 'fib', topic: 'topic 2'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mtf'});
myCollection.push({sub: 'Book 1', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 2', type: 'mcq', topic: 'topic 1'});
myCollection.push({sub: 'Book 2', topic: 'topic 1', type: 'mcq'});
myCollection.push({sub: 'Book 2', topic: 'topic 1', type: 'mcq'});
var dom="<ul>";
var used = new Array();
var currentItems = new Array(myLevel.length);
var lastJ = -1;
for(var i=0; i<myCollection.length; i++)
{
var con = false;
for(var k=0; k<used.length; k++){
if(compareObjects(used[k], myCollection[i]))
con = true;
}
if(!con){
for(var j=0; j<myLevel.length; j++){
if(currentItems[j] !== myCollection[i][myLevel[j]]){
if(lastJ !== -1){
for(var l=0; l<lastJ-j; l++){
dom+="</ul></li>";
}
}
for(var l=j+1; l<currentItems.length; l++)
currentItems[l] = "";
currentItems[j] = myCollection[i][myLevel[j]];
dom+="<li>"+currentItems[j]+(j<myLevel.length-1?"<ul>":"");
lastJ = j;
}
}
used.push(myCollection[i]);
}
}
dom+="</ul>";
$('body').html(dom);
function compareObjects(obj1, obj2){
if(obj1.length != obj2.length)
return false;
for(var el in obj1){
if(obj2[el] === undefined)
return false;
if(obj1[el] !== obj2[el])
return false;
}
return true;
}
var myLevel=['sub','topic','type'];
var myCollection=新数组();
push({sub:'Book 1',topic:'topic 1',type:'mcq'});
push({sub:'Book 1',topic:'topic 1',type:'mcq'});
push({sub:'Book 1',type:'fib',topic:'topic 2'});
push({sub:'Book 1',topic:'topic 1',type:'mtf'});
push({sub:'Book 1',topic:'topic 1',type:'mcq'});
push({sub:'Book 2',键入:'mcq',主题:'topic 1'});
push({sub:'Book 2',topic:'topic 1',type:'mcq'});
push({sub:'Book 2',topic:'topic 1',type:'mcq'});
var dom=“”;
使用的变量=新数组();
var currentItems=新数组(myLevel.length);
var lastJ=-1;
因为(var i=0;i似乎经过很多努力,我已经用一些技巧得到了我的答案
var $out;
$(document).ready(function()
{
for(var i=0; i<myCollection.length; i++)
{
$out = $('#out');
for(var j=0; j<levelTree.length; j++)
{
var itemName = myCollection[i][levelTree[j]];
var level = j;
/**********************************************************/
var $con;
if($out.children().eq(0).length == 0)
{
$con = $('<ul></ul>');
$con.append('<li>'+ itemName + '</li>');
$out.append($con);
}
else
{
var flag = $out.children().eq(0).children().filter(function(i, e)
{
return (this.childNodes[0].textContent == itemName);
});
console.log(flag.length);
if(flag.length == 0)
{
$out.children().eq(0).append('<li>' + itemName + '</li>');
}
}
var ele = $out.children(0).eq(0).children().filter(function(i, e)
{
return (this.childNodes[0].textContent == itemName);
}).get();
$out = $(ele);
/**********************************************************/
}
}
});
var$out;
$(文档).ready(函数()
{
for(var i=0;使用嵌套数组(Book=>Topics=>Type)谢谢,但是任何ul中的列表都应该是唯一的,不应该重复。它还依赖于myLevel变量,用于嵌套级别。数组中是否有必要存在重复项,或者是否可以删除它们?是的。这是强制性的,因为我需要创建树结构。最终我无法更改myCollection,它可以是任何内容,并且它的级别可以通过rom myLevel变量。很抱歉,我花了这么长时间,但这是一个非常难回答的问题,这正是我想要的。非常感谢Markai:)