Breaking News: Grepper is joining You.com. Read the official announcement!

how to remove duplicate array object in javascript

Add Answer

Restu Wahyu Saputra answered on January 2, 2020 Popularity 10/10 Helpfulness 5/10

answer how to remove duplicate array object in javascript

related how to remove duplicate array object in javascript

related remove duplicates from array of objects javascript

related remove duplicate objects from array javascript

related how to remove duplicate array object in javascript

related remove duplicate object from array javascript

related how to remove duplicate values in array of objects using javascript

related duplicate value removed in array of object in javascript

related remove duplicates objects from array javascript

how to remove duplicate array object in javascript

Comment

let days = ["senin","senin","selasa","selasa","rabu","kamis", "rabu"];
let fullname = [{name: "john"}, {name: "jane"}, {name: "imelda"}, {name: "john"},{name: "jane"}];

// REMOVE DUPLICATE FOR ARRAY LITERAL
const arrOne = new Set(days);
console.log(arrOne);

const arrTwo = days.filter((item, index) => days.indexOf(item) == index);
console.log(arrTwo);


// REMOVE DUPLICATE FOR ARRAY OBJECT
const arrObjOne = [...new Map(person.map(item => [JSON.stringify(item), item])).values()];
console.log(arrObjOne);

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

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript object

Link to this answer
Share Copy Link

Contributed on Apr 22 2020

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

Closely Related Answers

how to remove duplicate array object in javascript

Comment

const arr = [{id: 1, name: 'one'}, {id: 2, name: 'two'}, {id: 1, name: 'one'}]

const ids = arr.map(o => o.id)
const filtered = arr.filter(({id}, index) => !ids.includes(id, index + 1))

console.log(filtered)

Popularity 10/10 Helpfulness 10/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Oct 12 2021

DecodeBuzzing

0 Answers Avg Quality 2/10

remove duplicates from array of objects javascript

Comment

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

const uniqueArray = arr.filter((v,i,a)=>a.findIndex(t=>(t.name===v.name))===i)
console.log(uniqueArray);

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jun 21 2021

Light Lobster

0 Answers Avg Quality 2/10

remove duplicate objects from array javascript

Comments(1)

const addresses = [...]; // Some array I got from async call

const uniqueAddresses = Array.from(new Set(addresses.map(a => a.id)))
 .map(id => {
   return addresses.find(a => a.id === id)
 })

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Jan 02 2020

Ornate Rock Dragon

0 Answers Avg Quality 2/10

how to remove duplicate array object in javascript

Comment

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

const obj = [...new Map(person.map(item => [JSON.stringify(item), item])).values()];
console.log(obj);

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Apr 22 2020

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

how to remove duplicate array object in javascript

Comment

-1

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);

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Apr 22 2020

Restu Wahyu Saputra

0 Answers Avg Quality 2/10

remove duplicate object from array javascript

Comment

const uniqify = (array, key) => array.reduce((prev, curr) => prev.find(a => a[key] === curr[key]) ? prev : prev.push(curr) && prev, []);

Popularity 9/10 Helpfulness 6/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Aug 04 2021

Average Alligator

0 Answers Avg Quality 2/10

how to remove duplicate values in array of objects using javascript

Comment

const array = [{id: 1, name: "hello"}, {id: 2, name: "hii"}, {id: 1, name: "hey"} ]; 
const cleanArray = array.reduce((unique, o) => {
        if(!unique.some(obj => obj.id === o.id)) {
          unique.push(o);
        } 
        return unique;
    },[]);

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Mar 14 2022

Himanshu Makwana

0 Answers Avg Quality 2/10

duplicate value removed in array of object in javascript

Comment

const arr = [{id: 1, name: 'one', position: 1}, {id: 2, name: 'two', position: 2}, {id: 1, name: 'one', position: 3}]

const ids = arr.map(o => o.id)
const filtered = arr.filter(({id}, index) => !ids.includes(id, index + 1))
console.log(filtered,'filtered')

const uniqueArray = arr.filter((v, i, a) => a.findIndex(t => (t.name === v.name)) == i)
console.log(uniqueArray,'uniqueArray');

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Mar 30 2022

$uj@y

0 Answers Avg Quality 2/10

remove duplicates objects from array javascript

Comment

arr.reduce((acc, current) => {
  const x = acc.find(item => item.id === current.id);
  if (!x) {
    return acc.concat([current]);
  } else {
    return acc;
  }
}, []);

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: Grepper

Tags: javascript j

Link to this answer
Share Copy Link

Contributed on Nov 09 2020

Awful Antelope

0 Answers Avg Quality 2/10

how to remove duplicate array object in javascript

Contents

More Related Answers

how to remove duplicate array object in javascript

Closely Related Answers

how to remove duplicate array object in javascript

remove duplicates from array of objects javascript

remove duplicate objects from array javascript

how to remove duplicate array object in javascript

how to remove duplicate array object in javascript

remove duplicate object from array javascript

how to remove duplicate values in array of objects using javascript

duplicate value removed in array of object in javascript

remove duplicates objects from array javascript

Grepper

Documentation

Social

Legal

Contact

Oops, You will need to install Grepper and log-in to perform this action.