我需要组合gid
和subGroups
,并将其输出到一个不重复的字符串数组中.
我现在的问题是,它只达到了第一级.
const oldGroup = [
{
"gid": "JFK",
"subGroups": [
"SFO",
"LAX"
]
},
{
"gid": "JFK",
"subGroups": [
"SFO",
"LAX"
]
},
{
"gid": "SFO",
"subGroups": []
},
{
"gid": "LAX",
"subGroups": [
"LGA"
]
}
]
const newGroup = [...new Set(oldGroup.map((group) => group.gid))]
console.log(newGroup)