【发布时间】：2016-10-21 17:00:08
【问题描述】：
我必须将 JSON 文件转换为特殊 div 中的树。
将 JSON 转换为 Javascript 对象不是问题，但我在使用递归函数将树显示到我的 div 时遇到了一些问题。
什么有效：我的递归函数允许我在控制台中显示所有子项。
什么不能：我只能将第一个孩子显示到 div 中，而不是第一个孩子的孩子。我认为问题来自“appendChild”方法。
如果您能帮助我，我将不胜感激。
JSON 代码：
{
"dir":"",
"name":"myProject",
"type":"folder",
"children":[
{
"dir":"myProject",
"name":"css",
"type":"folder",
"children":[
{
"dir":"myProject/css",
"name":"main.css",
"type":"file"
},
{
"dir":"myProject/css",
"name":"menu.css",
"type":"file"
},
{
"dir":"myProject/css",
"name":"user.css",
"type":"file"
}
]
},
{
"dir":"myProject",
"name":"fonts",
"type":"folder"
},
{
"dir":"myProject",
"name":"images",
"type":"folder",
"children":[
{
"dir":"myProject/images",
"name":"logo.png",
"type":"file",
"corrupted":true
}
]
},
{
"dir":"myProject",
"name":"index.html",
"type":"file"
},
{
"dir":"myProject",
"name":"js",
"type":"folder",
"children":[
{
"dir":"myProject/js",
"name":"controllers",
"type":"folder",
"children":[
{
"dir":"myProject/js/controllers",
"name":"core",
"type":"folder",
"children":[
{
"dir":"myProject/tempjs/controllerslates/core",
"name":"menu.js",
"type":"file"
}
]
},
{
"dir":"myProject/js/controllers",
"name":"errors",
"type":"folder",
"children":[
{
"dir":"myProject/js/controllers/errors",
"name":"error.js",
"type":"file"
}
]
},
{
"dir":"myProject/js/controllers",
"name":"home",
"type":"folder",
"children":[
{
"dir":"myProject/js/controllers/home",
"name":"homePage.js",
"type":"file"
}
]
},
{
"dir":"myProject/js/controllers",
"name":"home",
"type":"folder",
"children":[
{
"dir":"myProject/js/controllers/user",
"name":"list.js",
"type":"file"
},
{
"dir":"myProject/js/controllers/user",
"name":"login.js",
"type":"file"
},
{
"dir":"myProject/js/controllers/user",
"name":"profile.js",
"type":"file"
},
{
"dir":"myProject/js/controllers/user",
"name":"subscribe.js",
"type":"file"
}
]
}
]
},
{
"dir":"myProject/js",
"name":"libs",
"type":"folder",
"children":[
{
"dir":"myProject/js/libs",
"name":"handlebars.min.js",
"type":"file"
},
{
"dir":"myProject/js/libs",
"name":"jquery.min.js",
"type":"file"
},
{
"dir":"myProject/js/libs",
"name":"require.min.js",
"type":"file",
"corrupted":true
}
]
},
{
"dir":"myProject/js",
"name":"main.js",
"type":"file"
},
{
"dir":"myProject/js",
"name":"models",
"type":"folder",
"children":[
{
"dir":"myProject/js/models",
"name":"menu.js",
"type":"file"
},
{
"dir":"myProject/js/models",
"name":"user.js",
"type":"file"
},
{
"dir":"myProject/js/models",
"name":"users.js",
"type":"file"
}
]
}
]
},
{
"dir":"myProject",
"name":"ressources",
"type":"folder"
},
{
"dir":"myProject",
"name":"views",
"type":"folder",
"children":[
{
"dir":"myProject/templates",
"name":"core",
"type":"folder",
"children":[
{
"dir":"myProject/templates/core",
"name":"footer.html",
"type":"file"
},
{
"dir":"myProject/templates/core",
"name":"header.html",
"type":"file"
},
{
"dir":"myProject/templates/core",
"name":"menu.html",
"type":"file"
}
]
},
{
"dir":"myProject/templates",
"name":"errors",
"type":"folder",
"children":[
{
"dir":"myProject/templates/errors",
"name":"error401.html",
"type":"file"
},
{
"dir":"myProject/templates/errors",
"name":"error403.html",
"type":"file"
},
{
"dir":"myProject/templates/errors",
"name":"error404.html",
"type":"file",
"corrupted":true
}
]
},
{
"dir":"myProject/templates",
"name":"home",
"type":"folder",
"children":[
{
"dir":"myProject/templates/home",
"name":"homePage.html",
"type":"file"
}
]
},
{
"dir":"myProject/templates",
"name":"home",
"type":"folder",
"children":[
{
"dir":"myProject/templates/user",
"name":"list.html",
"type":"file"
},
{
"dir":"myProject/templates/user",
"name":"login.html",
"type":"file"
},
{
"dir":"myProject/templates/user",
"name":"profile.html",
"type":"file"
},
{
"dir":"myProject/templates/user",
"name":"subscribe.html",
"type":"file"
}
]
}
]
}
]
}
我的 JS 代码：
var treeModule;
treeModule = document.getElementById("json").innerHTML;
treeModule = JSON.parse(treeModule);
console.log(treeModule);
function Recursive(objetJS, isFirstParent) {
var list = document.createElement("ul");
for(let child of objetJS.children) {
var item = document.createElement("li");
item.innerHTML = child.name;
item.setAttribute('type', child.type);
console.log(child.name);
if(typeof(child.children) == "object") {
Recursive(child, false);
}
list.appendChild(item);
}
if(list.parentElement != null) {
item.appendChild(list);
}
if(isFirstParent == true) {
var htmlElement = document.getElementById("html");
htmlElement.innerHTML = '';
htmlElement.appendChild(list);
}
}
Recursive(treeModule, true);
【问题讨论】：
标签： javascript recursion tree