How can I filtered array of object with array by item inside it ? javascript

Question

I want to filter this array of object by one favoriteCities for example by Paris but it's not working, I wouls like to get an array with the object that contain "Paris" in the favoriteCities, please hep I tried several options

       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)

You haven't supplied code that makes sense. Is that a function returning an Object? }); suggests not. ele.favoriteCities? Where's that? console.log(res)? res is not defined. — StackSlave
– StackSlave, Commented Jan 6, 2021 at 23:37

Mick · Accepted Answer · 2021-01-06 23:40:09Z

2

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)

answered Jan 6, 2021 at 23:40

Mick

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