What is lodash.union?
The lodash.union package is a utility library that provides a method to create an array of unique values, in order, from all given arrays using SameValueZero for equality comparisons.
Union of Arrays
This feature allows you to combine multiple arrays into one array with unique values. The example demonstrates combining two arrays [1, 2, 3] and [2, 3, 4] into a single array [1, 2, 3, 4] without duplicates.
const _ = require('lodash.union');
const array1 = [1, 2, 3];
const array2 = [2, 3, 4];
const unionArray = _.union(array1, array2);
console.log(unionArray); // Output: [1, 2, 3, 4]