我的递归函数工作:
hasChildNodes总是返回未定义
function Recursive(JSObject) {
for(let JSChild of JSObject.children) {
console.log(JSChild.name);
console.log(JSChild.hasChildNodes);
/*if(JSChild.hasChildNodes) {
Recursive(JSChild);
}*/
}
}
不幸的是,线:
的console.log(JSChild.hasChildNodes);
总是返回“undefined”,而有些节点有一个或多个孩子。
此外,w3school使用一些支架在hasChildNodes结束,但是当我这样做,我的浏览器(Chrome)返回此错误:
JSChild.hasChildNodes不是一个函数
我不理解为什么没有任何工作。
如果你能帮助我,我将不胜感激。
编辑:(JSON格式对象)
{
"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"
}
]
}
]
}
]
}
注意:['hasChildNodes'](https://developer.mozilla.org/en-US/docs/Web/API/Node/hasChildNodes)是一种方法,不是属性,需要调用。 – evolutionxbox
你可以分享你正在迭代的'JSObject'吗? – evolutionxbox
如果我可以给你JSON格式,这里是(在我的第一篇文章中) – Lodec