What is arr-diff?
The arr-diff npm package is used to compute the difference between one or more arrays, returning an array that contains the values from the first array that are not present in the other arrays.
What are arr-diff's main functionalities?
Basic array difference
This feature allows you to find the elements that are present in the first array but not in the subsequent arrays. The code sample demonstrates how to use arr-diff to filter out the numbers 2 and 4 from the array [1, 2, 3, 4, 5], resulting in [1, 3, 5].
[1, 2, 3, 4, 5].filter(arrDiff([2, 4]))
Multiple array difference
This feature is used to find the difference between one array and multiple other arrays. The code sample shows how to use arr-diff to filter out the numbers 2, 3, 4, and 5 from the array [1, 2, 3, 4, 5], resulting in [1].
[1, 2, 3, 4, 5].filter(arrDiff([2, 3], [4, 5]))
Other packages similar to arr-diff
lodash.difference
Lodash's difference function is similar to arr-diff. It creates an array of array values not included in the other given arrays using SameValueZero for equality comparisons. Lodash is a more extensive utility library that includes a wide range of functions for different purposes.
underscore
Underscore.js is a utility library that offers the _.difference function, which is similar to arr-diff's functionality. It returns the values from the first array that are not present in the other arrays. Underscore.js provides a more comprehensive set of utility functions beyond array manipulation.
ramda
Ramda is a functional programming library that includes a difference function, which behaves similarly to arr-diff. It focuses on a more functional programming approach and offers a suite of tools for this paradigm.