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js check if array of objects contains duplicates

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Ugliest Unicorn answered on May 20, 2020 Popularity 10/10 Helpfulness 4/10

answer js check if array of objects contains duplicates

related array of objects how to check if property has duplicate

related check which is dubicate in object of array

related array of objects value repeat check

related find duplicate objects in array js

related check duplication or existing object in an array

js check if array of objects contains duplicates

Comment

const arrayOfObjCopy = [...arrayOfObj];

Object.keys(arrayOfObjCopy).forEach((key) => {
  arrayOfObjCopy[key] = JSON.stringify(arrayOfObjCopy[key]);
 });

const arrayOfObjhasDuplicates = uniq(arrayOfObjCopy).length != arrayOfObjCopy.length;

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: contains javascript

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Contributed on Nov 17 2020

Ugliest Unicorn

0 Answers Avg Quality 2/10

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array of objects how to check if property has duplicate

Comment

var yourArray = [

{Index: 1, Name: "Farley, Charley", EmployeeCode: "12", PaymentType: "Void", CheckDate: "01/04/2012"},
{Index: 2, Name: "Farley, Charley", EmployeeCode: "12", PaymentType: "Void", CheckDate: "01/04/2012"},
{Index: 3, Name: "Tarley, Charley", EmployeeCode: "12", PaymentType: "Void", CheckDate: "01/04/2012"}
];

   unique = [...new Set(yourArray.map(propYoureChecking => propYoureChecking.Name))];
if (unique.length === 1) {
console.log(unique);
}

Popularity 10/10 Helpfulness 6/10 Language typescript

Source: Grepper

Tags: typescript t

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Contributed on May 20 2020

Rich Ray

0 Answers Avg Quality 2/10

check which is dubicate in object of array

Comment

const arry = [1, 2, 1, 3, 4, 3, 5];

const toFindDuplicates = arry => arry.filter((item, index) => arr.indexOf(item) !== index)
const duplicateElementa = tofindDuplicates(arry);
console.log(duplicateElements);

// Output: [1, 3]

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: flexiple.com

Tags: javascript j

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Contributed on May 20 2022

Faran Shahid

0 Answers Avg Quality 2/10

array of objects value repeat check

Comment

const values = [
  { name: 'someName1' },
  { name: 'someName2' },
  { name: 'someName3' },
  { name: 'someName1' }
]

const uniqueValues = new Set(values.map(v => v.name));

if (uniqueValues.size < values.length) {
  console.log('duplicates found')
}
 Run code snippetHide results

Popularity 8/10 Helpfulness 3/10 Language typescript

Source: stackoverflow.com

Tags: repeat typescript type

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Contributed on May 20 2022

Faran Shahid

0 Answers Avg Quality 2/10

find duplicate objects in array js

Comment

let arr = []
arr.push({place:"here",name:"stuff"});
arr.push({place:"there",name:"morestuff"});
arr.push({place:"there",name:"morestuff"});


arr = arr.filter((value, index, self) =>
                 // return if the index if the matched innerr iteration matches the index of the outer iterator
  index === self.findIndex((t) => (
    t.place === value.place && t.name === value.name
  ))
)

Popularity 1/10 Helpfulness 1/10 Language typescript

Source: stackoverflow.com

Tags: find typescript

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Contributed on Apr 20 2022

eje sunday

0 Answers Avg Quality 2/10

find duplicate objects in array js

Comment

let arr = []
arr.push({place:"here",name:"stuff"});
arr.push({place:"there",name:"morestuff"});
arr.push({place:"there",name:"morestuff"});


arr = arr.filter((value, index, self) =>
// return if the index if the matched innerr iteration matches the index of the outer iterator
  index === self.findIndex((t) => (
    t.place === value.place && t.name === value.name
  ))
)

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: stackoverflow.com

Tags: find javascript

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Contributed on Apr 20 2022

eje sunday

0 Answers Avg Quality 2/10

check duplication or existing object in an array

Comment

const checkObjectExist = (obj,list) => {
  let i;
  for (i = 0; i < list.length; i++) {
    if (list[i] === obj) {
      return true;
    }
  }
  return false;
}

Popularity 7/10 Helpfulness 1/10 Language javascript

Source: Grepper

Tags: javascript object objec

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Contributed on Jan 27 2023

Enthusiastic Eel

0 Answers Avg Quality 2/10

js check if array of objects contains duplicates

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js check if array of objects contains duplicates

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array of objects how to check if property has duplicate

check which is dubicate in object of array

array of objects value repeat check

find duplicate objects in array js

find duplicate objects in array js

check duplication or existing object in an array

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