使用递归 JavaScript 将 JSON 转换为另一种 JSON 格式
javascriptweb developmentfront end technologyobject oriented programmingjson
假设，我们有以下 JSON 对象 −
const obj = {
"context": {
"device": {
"localeCountryCode": "AX",
"datetime": "3047-09-29T07:09:52.498Z"
},
&"currentLocation";: {
&"country";: &"KM";,
&"lon";: -78789486,
}
}
};
我们需要编写一个 JavaScript 递归函数，该函数最初接受一个这样的数组。该函数应将上述对象拆分为"label"-"children"格式。
因此，上述对象的输出应如下所示 −
const output = {
"label": "context",
"children": [
{
"label": "device",
"children": [
{
"label": "localeCountryCode"
},
{
"label": "datetime"
}
]
},
{
"label": "currentLocation",
"children": [
{
"label": "country"
},
{
"label": "lon"
}
]
}
]
}
其代码为 −
示例
const obj = {
"context": {
"device": {
"localeCountryCode": "AX",
"datetime": "3047-09-29T07:09:52.498Z"
},
"currentLocation": {
"country": "KM",
"lon": -78789486,
}
}
};
const transformObject = (obj = {}) => {
if (obj && typeof obj === 'object') {
return Object.keys(obj).map((el) => {
let children = transformObject(obj[el]); return children ? {
label: el, children: children } : {
label: el
};
});
};
};
console.log(JSON.stringify(transformObject(obj), undefined, 4));
输出
控制台中的输出将是 −
[
{
"label": "context",
"children": [
{
"label": "device",
"children": [
{
"label": "localeCountryCode"
},
{
"label": "datetime"
}
]
},
{
"label": "currentLocation",
"children": [
{
"label": "country"
},
{
"label": "lon"
}
]
}
]
}
]
