如何過濾 object 數組，其中包含逐項數組？ javascript

Question

我想通過一個最喜歡的城市（例如巴黎）過濾這個 object 數組，但它不起作用，我想獲得一個包含 object 的數組，在最喜歡的城市中包含“巴黎”，請幫助我嘗試了幾個選項

       const favCity= [{
                    name: "shaun",
                    favoriteCities: ["Paris", "London"]
                  },
                  {
                    name: "valerie",
                    favoriteCities: ["Paris", "NewYork"]
                  },
                  {
                    name: "peter",
                    favoriteCities: ["London", "Berlin"]
                  }
                ]
            
            const res = favCity.filter((ele,i)=>{

 return {
   name: ele.name,
   favoriteCities: ele.favoriteCities.filter(element=>
         element === "Paris" ? ele.favoriteCities : [])
        }
});


console.log(res)

Answer 1

let favCity= [{
                    name: "shaun",
                    favoriteCities: ["Paris", "London"]
                  },
                  {
                    name: "valerie",
                    favoriteCities: ["Paris", "NewYork"]
                  },
                  {
                    name: "peter",
                    favoriteCities: ["London", "Berlin"]
                  }
                ]
            
favCity = favCity.filter(element => element.favoriteCities.includes("Paris"))

console.log(favCity)