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array unique value find in javascript

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Md: Jakaria answered on February 28, 2020 Popularity 8/10 Helpfulness 2/10

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array unique value find in javascript

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Javascript unique array or dublicate array value find programs

  function uniqueAry(ary) {
    if (!Array.isArray(ary)) return `function paramiter only required on array!`
    // simple and old methods
    const uniqueAry = []
    const dubAry = []
    for (const arr of ary) {
      if (!uniqueAry.includes(arr)) {
        uniqueAry.push(arr)
      } else if (!dubAry.includes(arr)) {
        dubAry.push(arr)
      }
    }
    // modern new methods solve the problems

    // const uniqueAry = ary.filter((item, index, array) => array.indexOf(item) === index)
    // const dubArrays = ary.filter((item, index, array) => array.indexOf(item) !== index)
    // const dubAry = [... new Set(dubArrays)]

    return {uniqueAry,aryDublicateValue:dubAry}
  }
  const input = [1, 2, 2,2,2,2, 3, 4, 5,6,6,6,5,4,4, 5]
  const output = uniqueAry(input)
  console.log(output);

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: Grepper

Tags: array-unique find javascript

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Contributed on Nov 03 2023

Md: Jakaria

0 Answers Avg Quality 2/10

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javascript array unique values

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var arr = [55, 44, 65,1,2,3,3,34,5];
var unique = [...new Set(arr)]

//just  var unique = new Set(arr) wont be an array

Popularity 10/10 Helpfulness 8/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Jul 03 2020

Batman

0 Answers Avg Quality 2/10

how to find unique elements in array in javascript

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let a = ["1", "1", "2", "3", "3", "1"];
let unique = a.filter((item, i, ar) => ar.indexOf(item) === i);
console.log(unique);

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: Grepper

Tags: elements element

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Contributed on May 17 2020

Funny Finch

0 Answers Avg Quality 2/10

javascript find unique values in array

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// usage example:
var myArray = ['a', 1, 'a', 2, '1'];
var unique = myArray.filter((v, i, a) => a.indexOf(v) === i); 

// unique is ['a', 1, 2, '1']

Popularity 10/10 Helpfulness 7/10 Language javascript

Source: stackoverflow.com

Tags: find

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Contributed on Feb 28 2020

CodeBaron

0 Answers Avg Quality 2/10

array unique values javascript

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const myArray = ['a', 1, 'a', 2, '1'];
const unique = [...new Set(myArray)]; // ['a', 1, 2, '1']

Popularity 10/10 Helpfulness 6/10 Language javascript

Source: Grepper

Tags: javascript j

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Contributed on Mar 03 2020

PandaNïrio

0 Answers Avg Quality 2/10

unique values in array javascript

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let uniqueItems = [...new Set(items)]

Popularity 10/10 Helpfulness 5/10 Language javascript

Source: stackoverflow.com

Tags: javascript j

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Contributed on Sep 06 2020

Smoggy Seal

0 Answers Avg Quality 2/10

array unique in javascript

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

// Using Set to remove duplicates
const uniqueArray = [...new Set(array)];

console.log(uniqueArray);

Popularity 8/10 Helpfulness 5/10 Language javascript

Source: Grepper

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Contributed on Sep 11 2023

YOU.com

0 Answers Avg Quality 2/10

get unique array javascript

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// one liner solution to get a unique array by object id
[{_id: 10},{_id: 20}, {_id: 20}].filter((item, i, ar) => ar.findIndex(each => each._id === item._id) === i)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: Grepper

Tags: get

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Contributed on Aug 29 2021

Frail Fowl

0 Answers Avg Quality 2/10

find unique elements in array javascript

Comment

const array = [1, 2, 3, 1, 2, 4, 5, 3, 6, 4];
const uniqueElements = [...new Set(array)];

console.log(uniqueElements);

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

unique values in array javascript

Comment

// Example array
const array = [1, 2, 2, 3, 4, 4, 5, 6, 6];

// Using Set to get unique values
const uniqueValues = [...new Set(array)];

console.log(uniqueValues); // Output: [1, 2, 3, 4, 5, 6]

Popularity 8/10 Helpfulness 4/10 Language javascript

Source: Grepper

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Contributed on Sep 12 2023

YOU.com

0 Answers Avg Quality 2/10

how to find unique values in an array in js using function

Comment

// app.js

Array.prototype.unique = function() {
  let arr = [];
  for(let i = 0; i < this.length; i++) {
      if(!arr.includes(this[i])) {
          arr.push(this[i]);
      }
  }
  return arr; 
}

const ages = [26, 27, 26, 26, 28, 28, 29, 29, 30]
const uniqueAges = ages.unique()
console.log(uniqueAges)

Popularity 10/10 Helpfulness 4/10 Language javascript

Source: appdividend.com

Tags: find

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Contributed on May 03 2022

Puzzled Peafowl

0 Answers Avg Quality 2/10

array unique value find in javascript

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