Answers for "delete duplicate keys from object javascript"

filter array of objects to remove duplicate keys

let person = [
{name: "john"}, 
{name: "jane"}, 
{name: "imelda"}, 
{name: "john"},
{name: "jane"}
];

const data = Array.from(new Set(person.map(JSON.stringify))).map(JSON.parse);
console.log(data);

remove object if key is duplicate javascript

let array =   [{"sector": "adad"},{"sector": "adadasdsd"},{"sector": "sdsdsd"},{"origin": "sdfsf"},{"destination":"dfsfsdf"}]

let reduced = array.reduce((a, c, i) => {
  let key = Object.keys(c)[0];
  if (!(key in a)) a[key] = [];
  if (!a[key].includes(c[key])) a[key].push(c[key]);
  return a;
}, {})

console.log(reduced)
 Run code snippet