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remove duplicate objects based on id from array angular 8

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Enchanting Echidna answered on November 9, 2020 Popularity 9/10 Helpfulness 4/10

answer remove duplicate objects based on id from array angular 8

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remove duplicate objects based on id from array angular 8

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function getUnique(arr, comp) {

                    // store the comparison  values in array
   const unique =  arr.map(e => e[comp])

                  // store the indexes of the unique objects
                  .map((e, i, final) => final.indexOf(e) === i && i)

                  // eliminate the false indexes & return unique objects
                 .filter((e) => arr[e]).map(e => arr[e]);

   return unique;
}

console.log(getUnique(arr,'id'));

Popularity 9/10 Helpfulness 4/10 Language typescript

Source: reactgo.com

Tags: angular typescript

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Contributed on Nov 09 2020

Enchanting Echidna

0 Answers Avg Quality 2/10

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remove duplicates objects from array angular

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this.item = this.item.filter((el, i, a) => i === a.indexOf(el))

Popularity 9/10 Helpfulness 7/10 Language typescript

Source: Grepper

Tags: angular

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Contributed on Jun 14 2021

Yeti Wallhack

0 Answers Avg Quality 2/10

remove duplicates from array of objects

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const arr = [
  { id: 1, name: "test1" },
  { id: 2, name: "test2" },
  { id: 2, name: "test3" },
  { id: 3, name: "test4" },
  { id: 4, name: "test5" },
  { id: 5, name: "test6" },
  { id: 5, name: "test7" },
  { id: 6, name: "test8" }
];

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

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: dev.to

Tags: javascript j

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Contributed on Aug 08 2022

allan asirraj

0 Answers Avg Quality 2/10

how to check duplicate objects in array and remove in angular

Comment

let arr = [
  {value: 'L7-LO', name: 'L7-LO'},
  {value: '%L7-LO', name: '%L7-LO'},
  {value: 'L7-LO', name: 'L7-LO'},
  {value: '%L7-LO', name: '%L7-LO'},
  {value: 'L7-L3', name: 'L7-L3'},
  {value: '%L7-L3', name: '%L7-L3'},
  {value: 'LO-L3', name: 'LO-L3'},
  {value: '%LO-L3', name: '%LO-L3'}
];
let obj = {};

const unique = () => {
  let result = [];
  
  arr.forEach((item, i) => {
    obj[item['value']] = i;
  });
  
  for (let key in obj) {
    let index = obj[key];
    result.push(arr[index])
  }
  
  return result;
}

arr = unique(); // for example; 

console.log(arr);

Popularity 6/10 Helpfulness 4/10 Language whatever

Source: stackoverflow.com

Tags: angular whatever

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Contributed on Jun 18 2021

Kind Kitten

0 Answers Avg Quality 2/10

how to check duplicate objects in array and remove in angular

Comment

var filterArray = courseArray.reduce((accumalator, current) => {
    if(!accumalator.some(item => item.id === current.id && item.name === current.name)) {
      accumalator.push(current);
    }
    return accumalator;
},[]);
console.log(filterArray)

Popularity 5/10 Helpfulness 3/10 Language whatever

Source: www.cloudhadoop.com

Tags: angular whatever

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Contributed on Jun 18 2021

Kind Kitten

0 Answers Avg Quality 2/10

remove duplicate objects based on id from array angular 8

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remove duplicate objects based on id from array angular 8

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how to check duplicate objects in array and remove in angular

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