array-duplicates
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Returns the duplicated items in an array.
npm install array-duplicates
Given an array with duplicates, obtain the duplicated items:
const duplicates = require('array-duplicates')
console.log(duplicates([1, 2, 3, 2, 3, 4])) // [2, 3]
console.log(duplicates([{ id: 1 }, { id: 2 }, { id: 2 }], i => i.id)) // [{ id: 2 }]
duplicates(array[, identity])array is an array containing numbers, string and/or objects.identity is an optional function that will recieve each item in the array and shall return a value that represents that item. Is needed when comparing objects, otherwhise, the objects will be compared by reference instead of content.WTFPL
FAQs
Returns the duplicated items found in an array
The npm package array-duplicates receives a total of 448 weekly downloads. As such, array-duplicates popularity was classified as not popular.
We found that array-duplicates demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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