array-non-uniq

Get the non-unique items in an array.

Install

npm install array-non-uniq

const arrayNonUniq = require("array-non-uniq");

arrayNonUniq([1, 1, 2, 3, 3]);
//=> [1, 3]

arrayNonUniq(["foo", "foo", "bar", "foo"]);
//=> ['foo']

Type: array

The array to process.