我有以下 JSON,其中包含 files
和 folders
(保留字),用于指示哪些是文件和文件夹。
the_name_of_the_folder_itself:
"files": [array_of_files_]
"folders": [objects of folders inside this dir]
更容易看到 JSON 本身:
{
"configfiles": {
"folders": {
"dir1": {
"files": [
"data.dat",
"data2.dat"
]
},
"dir2": {
"folders": {
"subffolder": {
"files": [
[]
]
},
"subffolder_2": {
"files": [
"other.dat"
]
}
},
"files": [
[]
]
}
},
"files": [
[]
],
"LoadBase": "barfoo IGNORE THIS"
}
}
我如何从该 JSON 中获取所有路径和文件,这意味着要有一个包含以下元素的输出数组?
configfiles/
configfiles/dir1/
configfiles/dir1/data.dat
configfiles/dir1/data2.dat
configfiles/dir2/
configfiles/dir2/subffolder/
configfiles/dir2/subffolder_2/
configfiles/dir2/subffolder_2/other.dat
这是我目前的尝试:
function getPathAndFolder(folderPath)
{
foldersArray = Object.keys(folderPath)
foldersArray.forEach(function callback(folderName, index, array)
{
finalArray.push(folderName)
filesArray = folderPath[folderName].files
filesArray.forEach(function callback(fileName, index, array)
{
finalPath = folderName + "/" + fileName
});
// Call it again
//getPathAndFolder()
});
}
finalArray = []
getPathAndFolder(inputJSONobject)
有人可以帮我一下吗?
最佳答案
您可以使用 for...in
循环创建递归函数,该循环将数据作为第一个参数和在添加到结果时忽略的键数组,您可以在其中传递 files
, 文件夹
等...
const json = {"configfiles":{"folders":{"dir1":{"files":["data.dat","data2.dat"]},"dir2":{"folders":{"subffolder":{"files":[[]]},"subffolder_2":{"files":["other.dat"]}},"files":[[]]}},"files":[[]],"LoadBase":"barfoo IGNORE THIS"}}
function getPaths(data, ignored = [], prev = '') {
const result = []
for (let i in data) {
let path = prev;
if (!ignored.includes(i)) {
if (!Array.isArray(data)) {
path += (prev.length ? '/' : '') + i
result.push(path)
} else if (data[i].length) {
result.push(path + '/' + data[i])
}
}
if (typeof data[i] === 'object') {
result.push(...getPaths(data[i], ignored, path))
}
}
return result;
}
const ignored = ['files', 'folders', 'LoadBase']
const result = getPaths(json, ignored);
console.log(result)
关于javascript - 在 JavaScript 中解析一个 JSON 对象生成一个数组,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/62280160/