JSPM

Sort an array on an object property

Test if a value is a Uint32Array.

Float64Array.

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

Test if a value is a Uint8Array.

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

Test if a value is a Uint16Array.

Uint8Array.

Maximum unsigned 32-bit integer.

Return a data type from a string representing the type

Packs an array-of-arrays into a single ndarray

Test if a value is a Float32Array.

Uint32Array.

Uint16Array.

Deep-merge the values of one object structure into another

Initialize an array of arrays to a constant

Rotate all items in an array

Find [nd-]array min/max values

creates a new array with given range

Rearrange array elements by index array

List of getter/setter properties for JavaScript types

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

Simple iterator for flat and multi section lists

Convert Buffer to ArrayBuffer

flattens nested vertex data into a typed array

Move an array item to a different position

Deep copy objects and arrays

List of properties for JavaScript objects

List of JavaScript types

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

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

The swiss army knife for binary data in JavaScript.

Makes easy to convert JSON to CSV

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.

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

Array / Arraylike utilities

Rotate an array by a given number of steps

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

Creates a real Array from almost anything.

Computes the dot product between two numeric arrays.

Computes the cosine similarity between two arrays.

Chai plugin for JSON Schema v4

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

Merge two lists, trying to preserve the order of both

Extensible deep value equivalence checking for any data types

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

Return true if the given number is even.

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

Functional tree editing, manipulation & navigation

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

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

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

Recursively iterates over arrays and objects

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

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

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.

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

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

Flatten a nested array.

Module for working with CIDR (v4, v6)

List of common default router IP addresses

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

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

A utility function to index arrays by any criteria

Lazily initialized properties for objects

recursive object extending & overriding

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

Sort string index ranges

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

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

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

Pipe an Array through Node.js streams

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.

Asynchronous iterator function for parallel processing.

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

Join all elements of an array and create a human-readable string

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.

Check if the given value is an Array

Randomize the order of the elements in a given array.

Fast intersection of multiple arrays

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

Returns an array filled with the specified input

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.

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

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

Create an error from an array of error messages

Execute a method out from an object.

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

Get consecutively unique elements from an array

create a new array filled with a value, or zero

remove items from a javascript array without generating memory garbage

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

Find the intersection of two arrays

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

Uppercase first character of each element in arrays of strings.

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

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

A map function that can map over almost anything.

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

List of video file extensions

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

A parallel, asynchronous implementation of forEach in ES6 with a configurable maximum degree of parallelism.

Collection of image extensions

Group array of objects into lists.

Circular fixed size array

Convert Gitignore to Glob patterns

Bind data arrays to any type of JS objects

Sparse array implementation in JS with no dependencies

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

Simple javascript lib for converting a [comma || space] delimited string to an array

Convert base64/datauri/plain string to ArrayBuffer

Randomize the order of items in an array

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

compare two collections

A BBCode to AST Parser part of @bbob

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

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

Count leading zeros in a Buffer (clz)

flatten() utility function

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

Check if an object is an array or a typed array

Prettier plugin to force all arrays to be multiline.

MongoDB-style object operators makes array manipulation easy: where/order/update/view

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

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.

Set of (possibly rotated) arrays

Swap two items in an array. Does not modify the Array prototype.

Convert an array to a csv formatted string

find all combinations from array

Run promise-returning & async functions in series

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

Convert any binary data to ArrayBuffer

Asynchronously calls a function on each element in an array in parallel.

In an array of objects, this enables a property on the object at the specified index, while disabling the property on all other objects.

a map from arrays of values to values

Invoke getter/setter functions on array-like objects

List of US states and territories.

dedupes an array

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

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

Simple command line parser for node

Detect which ES6 (ES2015 and above) features are available

Composite utilities (immutability, fp helpers)

Maximum length for a typed array.

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

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

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

Get the Depth of a Multi-Dimensional Array of Values

Create a filled generic array.

Memory-Aware Statistical Calculations

return the number of bytes in a unicode string

Retrieves the value of a specified property from all elements in the collection.

Transforms nested values of complex objects

Test if a value is a collection.

Maximum unsigned 32-bit integer.

Check whether a value is empty or blank, includes string whitespace support

Create a zero-filled generic array.

Test if a value is an Int32Array.

Uint8ClampedArray.

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

Shuffle Array based on a Seed

Compute the cartesian product of an array.

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

Fun with Iterables

Sort the keys of an object recursively

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

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

Int16Array.

Treat your $PATH like a JavaScript Array

Test if a value is an Int8Array.

Array#filter() with also detecting indexes of filtered values

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

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.

Transforms nested keys of complex objects

HashMap Class for JavaScript

Create an object from from arrays of keys and values

Validates if a value is array-like.

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

Int8Array.

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

Copy or deep clone a value to an arbitrary depth.

Array-map like function for objects.

Check if a value is an array or a typed array

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

write logs to js Array

Fast, generic JavaScript/node.js utility functions.

List of prototype properties for JavaScript types

Component-wise operations on ndarrays

Put non-empty strings into arrays, turn empty-ones into empty arrays. Bypass everything else.

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

Get the Smallest and Largest Possible Numbers for a Typed Array

Get or set a deep value using a keypath string. Supports bracket and dot notation

short-circuited, asynchronous version of Array.protototype.some

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

Int32Array.

Computes array dimensions.

Test if a value is a Uint8ClampedArray.

Test if a value is an Int16Array.

Perform data joins with any type of JS objects

Push items to an array at their correct sort-position

Sort an array using the merge-sort algorithm.

Sorts ndarrays in place

A convenient way to return a JSX fragment without the wrapping `div` element and not worry about the version of React.

WebGL buffer wrapper

Vertex array object wrapper/shim for WebGL

Maximum length for a generic array.

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

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

Get Pokémon names

return a grouped object from array

Type checking for JSON values

Get the index of the first element in an array that returns truthy for the given value, using strict equality for comparisons.

Consumes a defaults object with booleans, generates all possible variations of it

Do not repeat anymore your objects transformations.

Array of "block level elements" defined by the HTML specification

Compare string arrays

Arrays.

Returns an element from an array when it matches a condition

Multidimensional arrays.

Generate a range array for numbers

Component to iterate an array round robin.

Ensure a value is an array and wrap it if it is not an array

Determine the best order for running async functions, and run them

Converts iterable objects into readable streams.

Copy or deep clone a value to an arbitrary depth.

Remove circular references from objects

Returns true if the callback returns truthy for all elements in the given array.

Return an array with the unique values present in _all_ given arrays using strict equality for comparisons.

Soft Asserts JSON, Array and other data

Convert a string to utf8 byte array or vice versa.

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

Convert ArrayBuffer to string

A tiny JavaScript library for converting arrays of strings to compound subjects

Big Array object that allows to handle arrays with a huge number of elements.

Checks if the given value is an array or array-like object.

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

A [Chai](http://chaijs.com/) plugin that allows for assertions on each item in an array

Get a random item from an array

Complex64Array.

Test if a value is an ArrayBuffer.

Calculates the Cartesian product between multiple collections.

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

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

Add an object to an array between each element

Complex128Array.

Extended JS Map with Array-like methods

Reinterpret a Complex64Array as a Float32Array.

Functional tools for JS arrays

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