JSPM

Minimal async jobs utility library, with streams support

a few common utility template tags for ES2015

prelude.ls is a functionally oriented utility library. It is powerful and flexible. Almost all of its functions are curried. It is written in, and is the recommended base library for, LiveScript.

flatten() utility function

🔧 Fast, modern, and practical utility library for FP in TypeScript.

A utility function to index arrays by any criteria

Fast, generic JavaScript/node.js utility functions.

Blazing fast, tree-shakeable, type-safe, modern utility library to sort any type of array in less than 1 KB!

Array reducing utility.

Utility method for finding the difference between arrays

qsu is a utility library that contains useful and frequently used functions. Start with your preferred language and the modern development environment.

Array filtering utility.

Array sorting utility.

Utility for modifying / processing the contents of Javascript objects or arrays via object notation strings or globs.

Utility for sorting object arrays on multiple properties

Utility functions for managing data structures and measurement.

A collection of utility functions for working with randomness.

Sorting and matching utility using configurable string, glob, regular expression, and/or function matchers

A few common utility template tags for ES2015

A utility for comparing arrays.

Array find first value utility

Set of utility methods for common operations

Lightweight TypeScript utility library providing essential array manipulation functions for state management.

Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.

Array standard deviation utility

A simple array utility to find duplicates in your object array 😍

A commonly used array copy utility. (arrayCopy and arrayCopyTo)

Utility types for TypeScript

Javascript utility functions for web development

List/array/set utility functions: union, intersect, complement, unique, first, last, has, add, toggle

Utility pack

A complete utility library for JavaScript and TypeScript

A small collection of useful array functions.

A minimal matching utility.

Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.

Utility functions

extend like a boss

Utility to create ESLint config files

A collection of useful utility functions with associated TypeScript types. All functions have been unit tested.

A simple utility to concatenate multiple arrays end-to-end. Ignores non-array inputs

Math utility to calculate with two arrays.

A collection of more than 60 often used utility JS functions that simplify frontend development.

Utility package for manipulating Array compatible with Typescript projects.

A utility module which provides straight-forward, powerful functions for working with asynchronous JavaScript

A zero-dependency utility library written in TypeScript

User-friendly glob matching

Optimized Array Utility Library

A utility library to convert between nested and flattened objects.

A modular javascript utility library.

> A simple JavaScript utility for conditionally joining classNames together.

Json Transformer Utility. Many times you want to interact with 3rd party services or clients, this utility acts as an adaptor and help you mantain code clean by maintaining only the json mappings

Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

A small utility function that converts ES6 import objects to an array of its own property values, complete with TypeScript defintions.

A collection of utility functions to split an array into chunks by size or certain condition

Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.

A small utility function that returns an array of formatted date strings.

Comprehensive utility library providing commonly used functions for JavaScript/TypeScript projects including array processing, object manipulation, Promise handling, and type checking

Extra utility methods for roblox-ts arrays

A modular, production-grade utility toolkit for Node.js and TypeScript, designed for robust, scalable applications (including Express-based services). All utilities are tree-shakable and can be imported independently.

A high-performance TypeScript utility package for filtering and manipulating arrays with an optimized React component for interactive filtering UI

Flatten a nested array.

A comprehensive collection of TypeScript/JavaScript utility functions for common programming tasks. Includes validation, object manipulation, date handling, string formatting, and more. Zero dependencies, fully typed, and optimized for performance.

A tiny and type-safe TypeScript utility to create and work with fixed-length arrays (tuples).

Tiny utility to check if a value is empty

Get the first fulfilled promise that satisfies the provided testing function

A small utility for storing and working with a fixed-length history of (ususally numeric) values.

Get the first path that exists on disk of multiple paths

Get the native type of a value.

Array#isArray for older browsers

JavaScript utility functions for various tasks

Determines if an object can be used as an array

Fill in a range of numbers or letters, optionally passing an increment or `step` to use, or create a regex-compatible range with `options.toRegex`

Tiny queue data structure

Get the last or last n elements in an array.

Run an array of functions in parallel

Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.

Get all but the last element or last n elements of an array.

Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

Create an array of unique values, in order, from the input arrays

Returns true if a value is a plain object, array or function.

List of binary file extensions

object-observer utility provides simple means to (deeply) observe specified object/array changes; implemented via native Proxy; changes delivered in a synchronous way

Planetary Dials is a utility library for mapping country codes, dial codes, and their flags.

An ES2019 spec-compliant `Array.prototype.flat` shim/polyfill/replacement that works as far down as ES3.

Is this value a JS ArrayBuffer?

Flatten nested arrays

Is this value a JS SharedArrayBuffer?

ES spec-compliant shim for ArrayBuffer.prototype.slice

Robustly get the byte length of a Typed Array

An ES7/ES2016 spec-compliant `Array.prototype.includes` shim/polyfill/replacement that works as far down as ES3.

Robustly get the byte offset of a Typed Array

A list of SPDX license identifiers

Advanced Array utility functions. Extra arguments for map and forEach including first, last, brk, odd, even, penultimate, and more!

An ES2019 spec-compliant `Array.prototype.flatMap` shim/polyfill/replacement that works as far down as ES3.

A simple list of possible Typed Array names.

Robustly get the length of a Typed Array

Convert a value to an array

A utility that provides a fluent, convenient interface for working with arrays of data in JavaScript. Influenced by Laravel Collections.

Simply swizzle your arguments

Detect whether or not an object is a Typed Array

An ESnext spec-compliant `Object.groupBy` shim/polyfill/replacement that works as far down as ES3.

TypedArray polyfill for old browsers

Array manipulation, ordering, searching, summarizing, etc.

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

An ESnext spec-compliant `Array.prototype.toSorted` shim/polyfill/replacement that works as far down as ES3.

A simple npm utility package for managing collection functions

Utility functions for SQL-like array joins

Push an array of items into an array, while being robust against prototype modification

Creates a shallow clone of any JavaScript value.

An ESnext spec-compliant `Array.prototype.findLastIndex` shim/polyfill/replacement that works as far down as ES3.

An ESnext spec-compliant `Array.prototype.findLast` shim/polyfill/replacement that works as far down as ES3.

A comprehensive TypeScript utility library with 250+ functions across 7 categories

Recursively (deep) clone JavaScript native types, like Object, Array, RegExp, Date as well as primitives.

Parse postgres array columns

Remove duplicate values from an array. Fastest ES5 implementation.

A static list of the Node.js builtin modules from the latest Node.js version

Test if a value is an array.

A TypeScript utility library focused on deep operations for objects and arrays with full type safety. Similar to Lodash, but narrower in scope and fully written in TypeScript to maximize typing support.

Test if a value is a Float64Array.

Test if a value is a Uint32Array.

Test if a value is a Uint8Array.

Test if a value is a Uint16Array.

Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.

Test if a value is a Float32Array.

Small utility function to calculate the average value of an array

Sort the keys of an object

Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.

Visit a method over the items in an object, or map visit over the objects in an array.

Events and more for arrays

Create an array by repeating the given value n times.

Recursively flatten an array or arrays.

Map `visit` over an array of objects.

A simple pagination utility, with humble operation ability.

Create an array without duplicates

Utils for working with JavaScript classes and prototype methods.

Iterator abstraction based on ES6 specification

A collection of helpful utility functions for common JavaScript development and browser DOM manipulation tasks

Check if a string matches the name of a Node.js builtin module

Get a compare function for array to sort

Utilities to get and check variable types (isString, isPlainObject, isRegExp, etc)

Turn anything into an array

Isomorphic, functional type-checking for Javascript

Guarantees an array back

No-bullshit, ultra-simple, 35-lines-of-code async parallel forEach / map function for JavaScript.

Utility method for finding the difference between arrays, showing which array has which differences

More than 130 Handlebars helpers in ~20 categories. Helpers can be used with Assemble, Generate, Verb, Ghost, gulp-handlebars, grunt-handlebars, consolidate, or any node.js/Handlebars project.

Create an array with values that are present in the first input array but not additional ones

List of text file extensions

ES2015 `Array#findIndex()` ponyfill

An ES5 spec-compliant `Array.prototype.reduce` shim/polyfill/replacement that works as far down as ES3.

Merge two lists, trying to preserve the order of both

Join paths and globs.

Get unique values of an array. Really, like deeply unique.

Array methods for ES6 Iterators

Array-slice method. Slices `array` from the `start` index up to, but not including, the `end` index.

Convert a string/promise/array/iterable/asynciterable/buffer/typedarray/arraybuffer/object into a stream

Like an array, but rounder.

Sort objects by property names using native Array.sort()

A collection of utility functions for asynchronous operations in TypeScript.

Removes duplicates from a sorted array in place

Get the longest item in an array.

A modern, comprehensive utility library with complete Lodash parity plus advanced features

Utility for working with an array of promises

A set of js core utility functions

Loop over each item in an array and call the given function on every element.

More than 130 Handlebars helpers in ~20 categories. Helpers can be used with Assemble, Generate, Verb, Ghost, gulp-handlebars, grunt-handlebars, consolidate, or any node.js/Handlebars project.

Replace or remove multiple items in an array.

Natural Sort algorithm for Javascript - Version 0.7 - Released under MIT license

Objix is a delightfully convienient, high performance, zero dependency and super lightweight utility which extends the javascript standard library to sugar many common use cases for working with any objects.

Convert an argument into a valid iterator. Based on the `.makeIterator()` implementation in mout https://github.com/mout/mout.

Check if two arrays are equal

Typescript-compatible minimalistic shallow equality check for arrays/objects

A simple and composable way to validate data in JavaScript (and TypeScript).

Lightweight and performant natural sorting of arrays and collections by differentiating between unicode characters, numbers, dates, etc.

Return true if a value is a valid glob pattern or patterns.

Microsoft sucks

Iterate any iterable JS value. Works robustly in all environments, all versions.

ES spec-compliant shim for TypedArray.prototype.slice

Concatenate a readable stream's data into a single array

Simple utility that checks whether or not two arrays overlap. It is equivalent to intersection(arr1, arr2).length > 0, but is more performant.

List of Markdown file extensions

A tiny (111B) & fast utility to retrieve all unique values from an Array

Find the greatest satisfied semver range from an array of ranges.

An ES5 spec-compliant `Array.prototype.map` shim/polyfill/replacement that works as far down as ES3.

An ES5 spec-compliant `Array.prototype.filter` shim/polyfill/replacement that works as far down as ES3.

Multidimensional arrays.

Run an array of functions in series

Convert Gitignore to Glob patterns

Creates an async iterator for a variety of inputs in the browser and node. Supports fetch, node-fetch, and cross-fetch

Isomorphic map-reduce function to flatten an array into the supplied array

Validates if a value is an array.

Run promise-returning & async functions in series, each passing its result to the next

Array#filter for older browsers.

An ESnext spec-compliant `Array.prototype.toReversed` shim/polyfill/replacement that works as far down as ES3.

Validates if a value is an integer array.

A utility that takes 1 or more sorted arrays and emits a node stream event whenever an intersection is found

Run an array of functions in parallel, but limit the number of tasks executing at the same time

Useful utility for recursively traversing Arrays and Objects.

A ponyfill for the ES 2015 (ES6) `Array.from()`.

Faster alternative to javascript's native filter method.

Computes the greatest common divisor (gcd).

Returns `true` if the given string or array starts with prefix using strict equality for comparisons. Using fastest implementation.

Returns `true` if the given `string` or `array` ends with `suffix` using strict equality for comparisons.

Computes the least common multiple (lcm).

An optionally-asynchronous forEach with an interesting interface.

make a shallow copy of an object or array

Fast and powerful array sorting. Sort an array of objects by one or more properties. Any number of nested properties or custom comparison functions may be used.

Faster, node.js focused alternative to JavaScript's native array map.

filter in array tree

`Array#forEach()` but it’s possible to define where to move to next

Treat multiple buffers as one

JavaScript utility methods for arrays

Sort array elements in descending order.

Sort the keys in an object.

Sort array elements in ascending order.

finds an item in an array matching a predicate function, and returns its index

ES6 Array.find ponyfill. Return the first array element which satisfies a testing function.

@ffras4vnpm/inventore-aliquam-quisquam is a Node.js module to mask various kinds of data. With the help of @ffras4vnpm/inventore-aliquam-quisquam, you can mask email, phone number, card number, JSON fields, password, etc... <br/>Also, it provides utility

`[].map(f)` for older browsers

[](https://www.npmjs.com/package/levenary) [](https://github.com/tanhauhau/levenary/actions)

JS/TS utility tool that offers your wide varity of function to simplify your problem with the data

Sorts any JavaScript array in a predictable way (deep equal arrays are always sorted in the same order)

The FinTech utility collections of simple, cumulative, and exponential moving averages.

Make any value an array. No dependencies.

A faster Node.js alternative to Array.prototype.slice.call(arguments)

Modern, strongly typed, and safe utility function library for JavaScript and TypeScript. Includes type checking, manipulation of arrays, objects, strings, dates, colors, numbers, regular expressions, and more. Compatible with Browser, Node.js, Deno, and B

Multidimensional Arrays

Returns `true` if a value exists in the given string, array or object.

Microsoft sucks

Returns the first index at which a given element can be found.

`[].reduce()` for old browsers

Watch an object or array for changes

javascript array, string, number, point, color, cache, date utility/helper

Test if a value is a collection.

A single collection of all of Just utility functions in one single library

Make array iteration easy when using async/await and Promises

Test if a value is an Int32Array.

Generates an array of consecutive integers starting at 0

Check whether a value is "empty".

Test if a value is an Int8Array.

Return the first index at which a given element can be found.

A comprehensive TypeScript utility library providing helper functions for arrays, objects, strings, and more

Javascript utility for calculating deep difference with order, capturing changes, and applying changes across objects; for nodejs and the browser.

Test if a value is a Uint8ClampedArray.

Test if a value is an Int16Array.

Async control for arrays

Return a function which tests if every element in an array passes a test condition.

Find the first element in an array that passes a callback test. Equivalent to underscore.find()

Reuse typed arrays

Safely push each item of an array to a stream