{ [ {
"dstCitys": [
{
"cityCode": "XIN",
"cityName": "信阳"
},
{
"cityCode": "GSA",
"cityName": "固始"
},
{
"cityCode": "GSB",
"cityName": "银川"
}
],
"dstCitysIterator": {},
"dstCitysSize": 1,
"ftCity": {
"cityCode": "SHWD",
"cityName": "赤峰"
}
},
{
"dstCitys": [
{
"cityCode": "XIN",
"cityName": "信阳"
},
{
"cityCode": "GSA",
"cityName": "固始"
},
{
"cityCode": "GSB",
"cityName": "西安"
}
],
"dstCitysIterator": {},
"dstCitysSize": 1,
"ftCity": {
"cityCode": "SNPD",
"cityName": "上海虹桥"
}
}
]
}
let temp = [];
res.ftCitys.forEach(item => {
temp.push(...item.dstCitys)
});
let obj = {};
let ftCitys = temp.reduce((cur, next) => {
obj[next.cityCode] ? "" : obj[next.cityCode] = true && cur.push(next);
return cur;
}, [])
console.log(ftCitys)
对象数组的去重
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