Awesome Micro npm Packages

😎 Awesome lists about all kinds of interesting topics

[[I'm slow at replying these days, but I hope to get back to answering questions eventually]] Ask me anything!

some best practices for JS modules

A small module to check if an Array is sorted

Get the first element or first n elements of an array.

Return the last element in an array. Faster than .slice

Recursively flatten an array or arrays. This is the fastest implementation of array flatten.

easy deduplication of array values

creates a new array with given range

Returns an array with only the unique values from all given arrays using strict equality for comparisons.

Returns an array filled with the specified input

Map object keys and values into an array.

Return true if a value exists in an array. Faster than using indexOf and won't blow up on null values.

Efficiently remove an element from an unordered array without doing a splice

Swaps the index / position of an array

NPM module for creating a keymirror object from an array of strings

Group array of objects into lists.

Split array/TypedArray to chunks of given size

Convert a camelized string into a lowercased one with a custom separator: unicornRainbow → unicorn_rainbow

Left pad a string with zeros or a specified string. Fastest implementation.

Convert a string to a camel case.

Convert a string to a capital case.

Convert a string to a constant case.

Convert a string to a dot case.

Remove an existing case from a string.

Convert a string to pascal case.

Convert a string to a sentence case.

Convert a string to a snake case.

Convert a string to a space case.

Convert a string to a title case.

slugifies even utf-8 chars!

Strip whitespace - or other characters - from the end of a string

nano library to enhance String.substring / Array.slice with python slice style by Proxy.

Strip ANSI escape codes from a string

An implementation of PHP's strip_tags in Typescript.

Parse next JSON value from string allowing extraneous characters after value

Created with CodeSandbox

Convert milliseconds to a human readable string: 1337000000 → 15d 11h 23m 20s

thin wrapper around process.hrtime

Lightweight and simple JS date formatting and parsing

Get a time reference using Akamai's time reference service

timeago.js is a tiny(2.0 kb) library used to format date with *** time ago statement.

Get the number of days in a given month

Get a formatted timestamp. Used in gulp, assemble, generate, and many others.

🕰 Tiny (280B) relative time string function (eg: "3 seconds ago")

Map object keys and values into a new object

Filter object keys and values into a new object

Get the values of an object

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

Returns a map with the keys mapped to the corresponding vals.

pluck without the madness

node's assert.deepEqual algorithm

[DEPRECATED] Recursive Object.assign()

Set nested properties on an object using dot-notation.

Use property paths (a.b.c) get a nested value from an object.

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

Deep-search objects for keys in JavaScript objects. Keys can be searched by providing an array of keys, or using a dot-notiation.

Flatten object keys

Converts an object literal with deeply nested nodes to a simple key/value object

Check if an object is empty.

Stringify an object/array like JSON.stringify just without all the double-quotes

Returns a copy of an object with its keys sorted

defines static object attributes using Object.defineProperties

Tells you what keys from first object are missing in second

Merge two objects and concatenate arrays that are values of the same object key.

Deep diffs two objects, including nested structures of arrays and objects, and returns the difference. ❄️

Function composition

simple curry module, with nothing too clever, and full test coverage

Run a function exactly one time

Bind a context to all functions in an object, including deeply nested functions.

module.exports = function (x) { return x }

Memoize functions - an optimization technique used to speed up consecutive function calls by caching the result of calls with identical input

Throttle and debounce functions.

A very tiny and fast compose function.

I created this in 2014, when I was learning how to program.

JavaScript/Node.js utility. Returns true if the value is a number or string number. Useful for checking regex match results, user input, parsed strings, etc.

I created this in 2014, the year I learned how to program. All of the downloads are from an old version of https://github.com/micromatch/micromatch. I've done a few other things since: https://github.com/jonschlinkert.

A tiny easy math include addition multiplication subtraction division.

Finds prime numbers using the Sieve of Eratosthenes algorithm.

Find the Greatest Common Divisor using Euclidean Algorithm

Tiny wrapper around Node streams2 Transform to avoid explicit subclassing noise

A through2 wrapper to create an Array.prototype.filter analog for streams

A through2 to create an Array.prototype.map analog for streams.

A streams2 Readable stream generator, useful for testing.

writable stream that concatenates strings or data and calls a callback with the result

rawStream.pipe(JSONStream.parse()).pipe(streamOfObjects)

A small promise-based wrapper for through2

pipe streams together and close all of them if one of them closes

Check if something is a Node.js stream

Transform your data as it pass by, synchronously.

Promisify a callback-style function

Like Promise.all but for object properties.

Resolves a promise after a specified delay.

Test whether an object looks like a promises-a+ promise

🎀 Just the cutest and tiniest queue/deque implementation!

A rm -rf util for nodejs

Recursively mkdir, like mkdir -p, but in node.js

A simple JavaScript implementation of du -sb

📂 Lightweight filesize to human-readable / proportions w/o dependencies for node.js & browsers.

Temporary file and directory creator for node.js

[DEPRECATED] Use mz or fs-extra^3 with Promise support

Reads the username and email from .gitconfig and returns it as json object

Lightweight event delegation

insert a string of css into the <head>

DOM element value getter/setter.

🎑🤞 Load one or more images, return a promise. Tiny, browser-only, no dependencies.

Get the real size of an <img>, <video>, or <canvas> in the browser.

Document ready listener for modern browsers

📄 Copy text from browser to clipboard...natively! < 1kB

The semver parser for node (the one npm uses)

Find maximum (or minimum) version according to semver

Find minimum in an array of version that satisfies a semver range.

Like ruby's Abbrev module

glob functionality for node.js

Get the username of the current user

parse argument options

convert png to ico format

Easily handle --help and --version arguments in your CLI application

Get namespaced config from the closest package.json

Normalize values in package.json to improve compatibility, programmatic readability and usefulness with third party libs.

Check whether a given value is a generator function

Generate RFC-compliant UUIDs in JavaScript

Mime types for JavaScript

checks if foo is not defined, i.e. undefined, null, an empty string, array, object or NaN

Check if a string represent a fully qualified domain name

I'll give you the right URL, but don't call me Shirley!

Check all the available MIME types of an extension

Delightful Node.js packages and resources

Awesome npm resources and tips