Answers for "how to remove duplicate objects from js array"

remove duplicates in array object javascript

//check one attribute
let person = [{name: "john"}, {name: "jane"}, {name: "imelda"}, {name: "john"}];

person = person.filter((item, index, self) =>
  index === self.findIndex((t) => (
    t.name === item.name
  ))
)

//check two attributes
let person = [{place: "uno", name: "john"}, {place: "duno", name: "jane"}, {place: "duno" ,name: "imelda"}, {place: "uno" ,name: "john"}];

person = person.filter((item, index, self) =>
  index === self.findIndex((t) => (
    t.place === item.place && t.name === item.name
  ))
)

remove duplicates from array of objects javascript

arr.filter((v,i,a)=>a.findIndex(t=>(t.place === v.place && t.name===v.name))===i)