Javascript Array in Array 转 树结构
有一组数据
[ [
path1,
path2,
file1.txt
],
[
path1,
file2.txt
],
[
file3.txt
]
]
想转成树结构
[ {
name: path1,
children: [
name: path2,
children: [
name: file1.txt
]
]
},
{
name: path1,
children: [
name: file2.txt
]
},
{
name: file3.txt
}
]
求js 写法
回答：
var list = [ [
'path1',
'path2',
'file1.txt'
],
[
'path1',
'file2.txt'
],
[
'file3.txt'
]
];
function transform(arr) {
var ret = [];
for (var i = 0; i < arr.length; ++i) {
var _arr = arr[i];
var obj = {}, _obj = obj;
for (var j = 0; j < _arr.length; ++j) {
var path = _obj.name = _arr[j];
if (path.indexOf(".") < 0) {
_obj = _obj.children = {};
}
}
ret.push(obj);
}
return ret;
}
console.dir(transform(list));
回答：
按顺序来构造树形的。
let list = [ [
'path1',
'path2',
'file1.txt'
],
[
'path1',
'file2.txt'
],
[
'file3.txt'
]
];
let arrToTree = (paths)=>Object.assign({name:paths.shift()},paths.length ?{children:[arrToTree(paths)]} : {});
list.map(paths=>arrToTree(paths));
结果
[{"name":"path1","children":[{"name":"path2","children":[{"name":"file1.txt"}]}]},{"name":"path1","children":[{"name":"file2.txt"}]},{"name":"file3.txt"}]以上是 Javascript Array in Array 转 树结构 的全部内容， 来源链接： utcz.com/p/936154.html
