小白，请教各位大佬！JSON格式变换。感激不尽

Question

现有格式如下：{"a":[1,3,5],"b":[2,4,6],"c":[1,2]}需要转成如下格式：{"1":['a','c'],"2":['b','c'],..."6":['b']}请问这要如何操作……

Answer 1

和楼上差不多，多验证一层是否有重复
letobj={
"a":[1,3,5],
"b":[2,4,6],
"c":[1,2,2,3,3]
}
letres={}
Object.keys(obj).forEach(key=>{
obj[key].forEach(num=>{
res[num]&&!res[num].includes(key)?res[num].push(key):res[num]?null:res[num]=[key]
})
})
console.log(res)
                            

Answer 2

leta={
"a":[1,3,5],
"b":[2,4,6],
"c":[1,2]
}
letb=change(a)
console.log(b)
change(a){
letb={}
Object.keys(a).forEach((name)=>{
a[name].forEach((num)=>{
if(!b[num])b[num]=[]
//elseif(b[num].includes(name))returnfalse//如果不允许重复就加上这句
b[num].push(name)
})
})
returnb
}