Remove objects with same ID – Javascript

i have an array like this.

0: {id: 4, country: Japan},
1: {id: 5, country: Korea},
2: {id: 6, country: Philippines},
3: {id: 6, country: Philippines} 

How can I remove both record with the same id? so the returned data should look like this.

0: {id: 4, country: Japan},
1: {id: 5, country: Korea}

How can i fix this? I tried the methods described in a specific topic here but it didn’t work