JSPM

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.

Copy the elements of an indexed array-like object to a new generic array.

Convert an array to a csv formatted string

A order-map collection in the form of key, value, that ensures the index.

Turn anything into an array

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

Run an array of functions in series

Isomorphic, functional type-checking for Javascript

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

List of text file extensions

Converts an array of items with ids and parent ids to a nested tree in a performant `O(n)` way. Runs in browsers and node.

Iterates over the elements in an array, returning an array with only the elements for which the callback returns truthy.

Creates a real Array from almost anything.

ES2015 `Array#findIndex()` ponyfill

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

Join paths and globs.

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

Treat multiple buffers as one

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

Test if a value is a Float64Array.

Float32Array.

Test if a value is a Uint32Array.

Test if a value is an array.

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

Float64Array.

Maximum unsigned 32-bit integer.

Test if a value is a Uint8Array.

Test if a value is a Uint16Array.

Uint8Array.

Get the last or last n elements in an array.

Convert Buffer to ArrayBuffer

Uint32Array.

Get the longest item in an array.

Test if a value is a Float32Array.

Uint16Array.

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

Faster alternative to javascript's native filter method.

Allows deep cloning of plain objects that contain primitives, nested plain objects, or nested plain arrays.

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

Convert a string to utf8 byte array or vice versa.

A tiny, faster alternative to native Array.prototype.every

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

Rotate an array by a given number of steps

Check if two arrays are equal

Microsoft sucks

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

Move an array item to a different position

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

Convert an 'address:port' string to an array [address:string, port:number]

Returns a copy of an object, sorted deeply by its keys, without mangling any arrays inside of it

Casts the given value to a flatten array, and removes falsey items (similar to lodash compact).

Give eachr an item to iterate (array, object or map) and an iterator, then in return eachr gives iterator the value and key of each item, and will stop if the iterator returned false.

Normalize array (possibly n-dimensional) to zero mean and unit variance

Compare your item to items in an array and get the closest one.

List of Markdown file extensions

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

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

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

Allows deep cloning of plain objects that contain primitives, nested plain objects, or nested plain arrays.

Simple ES6 Array.prototype.findIndex polyfill for older environments.

flattens nested vertex data into a typed array

An RxJS map operator that takes an observable of arrays as input and emits arrays where each element represents emissions from the projected observable.

Return a JSON representation of a typed array.

Validates if a value is an array.

Merge two lists, trying to preserve the order of both

Returns true if the given is falsey (according to JavaScript) or matches a 'falsey' keyword.

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

Chai plugin for JSON Schema v4

Array#filter for older browsers.

Validates if a value is an integer array.

Computes the greatest common divisor (gcd).

Safely push each item of an array to a stream

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

Deep-merge the values of one object structure into another

An optionally-asynchronous forEach with an interesting interface.

A utility function to index arrays by any criteria

Computes the least common multiple (lcm).

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.

Create an error from an array of error messages

filter in array tree

Return a data type from a string representing the type

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.

Isomorphic, load-anywhere function to sort an array by scalar, deep or computed values in any standard or custom order

Shuffle and unshuffle an array by seed/key.

Returns true if the given number is odd, and is an integer that does not exceed the JavaScript MAXIMUM_SAFE_INTEGER.

Functional tree editing, manipulation & navigation

Sort the keys in an object.

Sort array elements in ascending order.

Sort array elements in descending order.

Run an array of functions in series, each passing its results to the next function (waterfall)

Initialize an array of arrays to a constant

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

Adds array support to node-glob, sync and async. Also supports tilde expansion (user home) and resolving to global npm modules.

creates a new array with given range

Asynchronous iterator function for parallel processing.

Fast intersection of multiple arrays

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

Returns an array filled with the specified input

Make any value an array. No dependencies.

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

Read, write or test a data structure's nested property via a string like 'my.nested.property'. It works through arrays and objects.'

Array / Arraylike utilities

Multidimensional Arrays

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

Microsoft sucks

Flatten a nested array.

Watch an object or array for changes

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.

Prettier plugin to force all arrays to be multiline.

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.

Converts value to an integer suitable for use as the length of an array-like object.

A data structure that combines a hash and an array for fast dictionary lookup and traversal by complex keys.

A map function that can map over almost anything.

Parse dotenv files for Boolean, Array, and Number variable types, built for CrocodileJS

Promised First-In-First-Out buffer. Await on push to be told when a value is consumed and await on shift for a value to consume when the buffer is empty.

Generates an array of consecutive integers starting at 0

Works like String.prototype.replace but outputs an array. Useful for replacing parts of the string with objects of other types.

`[].reduce()` for old browsers

Make array iteration easy when using async/await and Promises

Extensible deep value equivalence checking for any data types

Bind data arrays to any type of JS objects

Copy the elements of an array-like object to a new generic array.

remove items from a javascript array without generating memory garbage

Convert base64/datauri/plain string to ArrayBuffer

Convert Gitignore to Glob patterns

Async array reduce. Asynchronously applies a function against an accumulator and each element in an array (from left to right, in series) to reduce it to a single value.

Copies missing properties to the target object.

Check whether a value is "empty".

Object/Array shallow copy

Wrapper for [braces] to enable brace expansion for arrays of patterns.

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

Recursively iterates over arrays and objects

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

Removes specified values from the end of an array.

Sort an array on an object property

Reuse typed arrays

Packs an array-of-arrays into a single ndarray

Convert any binary data to ArrayBuffer

Reduce an array to unique values, optionally into a separate array.

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

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

Rotate all items in an array

Lazily initialized properties for objects

The Type Conversion Library. Numbers, Strings, Arrays, Maps, Objects, and Iterators.

Find [nd-]array min/max values

Rearrange array elements by index array

Simple iterator for flat and multi section lists

List of getter/setter properties for JavaScript types

Return the strides of a provided ndarray.

Uint8ClampedArray.

Return the shape of a provided ndarray.

List of properties for JavaScript objects

List of JavaScript types

Maximum length for a typed array.

Like lodash's _.defaultsDeep, but with array preservation

Easily create a normalized inquirer choices question. Supports all of the `choices` question types: checkbox, list, rawlist, expand

Returns an array containing the initial elements which both input arrays have in common

Test if a value is a collection.

Create a filled generic array.

Comma delimit an array for human readability, the Oxford comma is optional.

Test if a value is an Int32Array.

Run promise-returning & async functions in series

Implementation of paper 'An O(ND) Difference Algorithm and Its Variations' on array

Test if a value is an Int8Array.

Computes the dot product between two numeric arrays.

Computes the cosine similarity between two arrays.

Create a zero-filled generic array.

Int16Array.

Randomize the order of items in an array

Get consecutively unique elements from an array

Test if a value is a Uint8ClampedArray.

Int8Array.

[![github actions][actions-image]][actions-url] [![coverage][codecov-image]][codecov-url] [![dependency status][deps-svg]][deps-url] [![dev dependency status][dev-deps-svg]][dev-deps-url] [![License][license-image]][license-url] [![Downloads][downloads-im

Memory-Aware Statistical Calculations

A fast implementation of a fisher-yates shuffle that does not mutate the source array.

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

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

Int32Array.

Return true if the given number is even.

Test if a value is an Int16Array.

Sort an object's keys, including an optional key list

Perform data joins with any type of JS objects

Transform dot-delimited strings to array of strings for Node.js and the browser.

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

high-performance, zero-dependency circular reference check for objects (or arrays)

Multidimensional arrays.

Computes the L2 norm (Euclidean norm) of an array of values.

Remembers the highest/lowest values in a data set of any size.

common javascript utils that can be required selectively that assume es5+

An ES-spec-compliant (proposed) Array.prototype.at shim/polyfill/replacement that works as far down as ES3

Compare string arrays

Arrays.

Collection of image extensions

Converts iterable objects into readable streams.

Group array of objects into lists.

returns a copy of an array or object with null/undefined members removed

Lots of utilities for Node.js

List of common default router IP addresses

A function for iterating over objects, arrays, strings and ranges

Filter an object by its keys or values. Returns a copy of an object filtered to have only keys or values that match the given glob patterns.

Maximum length for a generic array.

Convert a plain array of nodes (with pointers to parent nodes) to a tree

A BBCode to AST Parser part of @bbob

Convert ArrayBuffer to string

Multi-Dimensional Functions. Create, Query, and Transform Multi-Dimensional Data.

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

recursive object extending & overriding

Helper library for getting all of the states and territories of the United States in the specific format that you need.

Turn an array into a list of comma-separated values, appropriate for use in an English sentence.

Sort string index ranges

Object -> [[key0, value0], [key1, value1]...]

Quickest Way to get the Minimum Value of an Array of Numbers (Typed or Untyped)

Chunk converts arrays like `[1,2,3,4,5]` into arrays of arrays like `[[1,2], [3,4], [5]]`.

Transforms nested values of complex objects

format multiline strings using tagged templates, instead of puting all lines into an array and joining to a string

Pipe an Array through Node.js streams

Convert an array-like object to an object likely to have the same "shape".

Set of (possibly rotated) arrays

Check if the given value is an Array

Extended JS Map with Array-like methods

Randomize the order of the elements in a given array.

Complex64Array.

Test if a value is an ArrayBuffer.

Advance to the next item in the array looping when hitting the end.

Transforms nested keys of complex objects

Do not repeat anymore your objects transformations.

Complex128Array.

Reinterpret a Complex64Array as a Float32Array.

a map from arrays of values to values

find all combinations from array

Generate markdown table from array of objects

🐊Putout plugin adds ability to convert anonymous to arrow function

When you want array.some but not array.every. Useful when you need to determine partially selected states - like partially selecting tree nodes when some but not all child nodes are checked.

Quickest Way to get the Maximum Value of an Array of Numbers (Typed or Untyped)

Find the index to insert an element in array keeping the sort order.

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

Fixes key names for HTTP form data, to ensure that arrays are handled correctly.

Execute a method out from an object.

Creates and makes an array without duplicates. Even with array of objects with a specified matcher.

Test if a value is an array-like object.

Reinterpret a Complex128Array as a Float64Array.

Replaces `arr.includes(val)' with `arr.indexOf(val) >= 0`.

Fuzzy match a command from a list (typo-safety)

Convert a csv formatted string to an array

A complete, fully tested data structure library written in TypeScript.

create a new array filled with a value, or zero

write logs to js Array