lodash find duplicate element index

Frail Fowl answered on May 6, 2020 Popularity 9/10 Helpfulness 3/10

answer lodash find duplicate element index

related lodash count duplicates in array

lodash find duplicate element index

Comment

const _ = require('lodash');
let arr = ["a", "a", "b", "c", "c", "a"];

let result = _.omitBy(
  _.reduce(arr, (a, v, i) => _.set(a, v, (a[v] || []).concat([i])), {} ),
  v => v.length <= 1
);

console.log(result);

Popularity 9/10 Helpfulness 3/10 Language javascript

Source: Grepper

Tags: element find javascript lodash

Link to this answer
Share Copy Link

Contributed on May 06 2020

Frail Fowl

0 Answers Avg Quality 2/10

Closely Related Answers

lodash count duplicates in array

Comment

const data = ["apple", "banana", "apple", "orange", "grapes", "mango", "banana"];

const result = _.values(_.groupBy(data)).map(d => ({name: d[0], count: d.length}));

console.log(result);

Popularity 9/10 Helpfulness 4/10 Language javascript

Source: stackoverflow.com

Tags: count coun

Link to this answer
Share Copy Link

Contributed on Aug 19 2021

Difficult Dunlin

0 Answers Avg Quality 2/10

lodash find duplicate element index

Contents

More Related Answers

lodash find duplicate element index

Closely Related Answers

lodash count duplicates in array

Grepper

Documentation

Social

Legal

Contact

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