JSPM

A collection of essential TypeScript types

User-friendly glob matching

Extend an object with the properties of additional objects. node.js/javascript util.

Higher-order functions and common patterns for asynchronous code

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.

Utility to parse a string bytes to bytes and vice-versa

HTTP and HTTPS modules that follow redirects.

Escape string for use in HTML

ES2019 spec-compliant String.prototype.trimEnd shim.

ES2019 spec-compliant String.prototype.trimStart shim.

Bindings for the Watchman file watching service

CLI app helper

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

Type check values

Utility for normalizing a numeric range, with a wrapping function useful for polar coordinates

Lazy-evaluating list of files, based on globs or regex patterns

unist utility to check if a node passes a test

unist utility to serialize a node, position, or point as a human readable location

unist utility to recursively walk over nodes, with ancestral information

unist utility to visit nodes

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

mdast utility to get the plain text content of a node

vfile utility to create a virtual message

A simple utility for conditionally joining classNames together

micromark utility with symbols

micromark utility to handle character codes

A small utility for creating warnings and emitting them.

micromark utility with a couple of typescript types

mdast utility to parse markdown

micromark utility to encode dangerous html characters

micromark utility to splice and push with giant arrays

micromark utility to sanitize urls

unist utility to get the position of a node

micromark utility normalize identifiers (as found in references, definitions)

mdast utility to transform to hast

micromark utility to combine syntax or html extensions

micromark utility to decode numeric character references

micromark utility to tokenize subtokens

micromark utility with list of html tag names

mdast utility to serialize markdown

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to resolve subtokens

micromark utility to decode markdown strings

hast utility to create trees

mdast utility to check if a node is phrasing content

Escape a string for use in HTML or the inverse

hast utility to create an element from a simple CSS selector

hast utility to check if a node is inter-element whitespace

mdast utility to find and replace text in a tree

vfile utility to convert between positional (line and column-based) and offset (range-based) locations

Cypress's fork of a simplified HTTP request client.

mdast extension to parse and serialize GFM tables

mdast extension to parse and serialize GFM task list items

mdast extension to parse and serialize GFM autolink literals

mdast extension to parse and serialize GFM (GitHub Flavored Markdown)

Utilities for watching file trees.

mdast extension to parse and serialize GFM strikethrough

mdast extension to parse and serialize MDX (or MDX.js) expressions

mdast extension to parse and serialize MDX.js ESM (import/exports)

mdast utility to find definition nodes in a tree

mdast extension to parse and serialize GFM footnotes

hast utility to transform from a `parse5` AST

mdast extension to parse and serialize MDX or MDX.js JSX

Correctly declare progressive enhancements for CSS Custom Properties.

unist utility to remove positions from a tree

hast utility to transform to preact, react, solid, svelte, vue, etc

easy to use progress-bar for command-line/terminal applications

hast utility to transform to a `parse5` AST

unist utility to check if a node is generated

hast utility to reparse a tree

A fast 642B utility that makes reading multipart responses simple

Determine an app's root path from anywhere inside the app

Utility Types Collection for TypeScript

hast utility to check if a node is a (certain) element

return whitelisted properties of an object

Coalesce for JavaScript. Returns the first value that is not undefined or null.

hast utility to serialize to HTML

unist utility to create a new trees with a nice syntax

A small utility, used by Fastify itself, for generating consistent error objects across your codebase and plugins.

unist utility to get a position from an estree node

mdast extension to parse and serialize MDX (or MDX.js)

esast (and estree) utility to visit nodes

Common utility functions for oas-kit

Lightweight and faster alternative to Ramda with included TS definitions

A cross platform Promise.allSettled polyfill

unist utility to remove nodes from a tree

hast utility to get the plain-text value of a node

hast utility to transform to estree (JavaScript AST) JSX

estree (and esast) utility to serialize to JavaScript

mdast extension to parse and serialize frontmatter (YAML, TOML, etc)

function binding utility

Prototype inheritance utility

hast utility to get the plain-text value of a node according to the `innerText` algorithm

unist utility to find a node after another node

Type assertions aka less-broken `typeof`

hast utility to parse from HTML

Similar to String#trim() but removes only newlines

mdast utility to remove empty paragraphs from a tree

Utilities for watching file trees.

Simplified HTTP request client.

hast utility to get the rank (or depth, level) of headings

Get the last or last n elements in an array.

Starts server, waits for URL, then runs test command; when the tests end, shuts down server

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

hast utility to check if a node has a property

unist utility to find nodes after another node

Simple help and sanity checks for Node CLI bin scripts

hast utility to sanitize nodes

Function argument validation for humans

estree (and esast) utility to parse from JavaScript

Takes a string, such as "1,2,3-10,5-8" and turns it into an array of numbers

React utility to merge refs.

esast utility to transform from estree

mdast utility to make a tree compact

unist utility to modify direct children of a parent

Small, performant & immutable iteration utilities for Arrays and Objects

mdast extension to parse and serialize math

mdast extension to parse and serialize generic directives (`:cite[smith04]`)

nlcst utility to transform a tree to a string

unist utility to visit direct children of a parent

vfile utility to create a report for a file

hast utility to create a tree from the DOM

vfile utility to count messages per category: failures, warnings, etc

vfile utility to sort messages by line/column

Utility data structure used in discord.js

hast utility that turns HTML into a syntax tree (while being small in browsers)

hast utility for `querySelector`, `querySelectorAll`, and `matches`

unist utility to create a new tree with nodes that pass a filter

A utility library for JavaScript and Typescript.

A JavaScript library for internationalization and localization that leverages the official Unicode CLDR JSON data.

Ethereum RPC and Provider errors.

hast utility to check if a node is an embedded element

vfile utility to read and write to the file system

Convenience wrapper for Got to interact with the GitHub API

hast utility to check if a node is phrasing content

unist utility to inspect nodes

Require Node module and immediately remove it from module cache to force loading again next time

hast utility to check if a link element is “Body OK”

Return a normal number `y` and exponent `exp` satisfying `x = y * 2^exp`.

Detect native Symbol support.

Test if a value is a string.

Return the global object.

Insert supplied variable values into a format string.

Test if a value is a regular expression.

Define a non-enumerable read-only property.

Define (or modify) an object property.

Test if an object has a specified property.

Tokenize a string into an array of string parts and format identifier objects.

Test if a value is a boolean.

Convert a double-precision floating-point number to the nearest single-precision floating-point number.

Escape a regular expression string or pattern.

Test if a double-precision floating-point numeric value is NaN.

Test if a value is a function.

Detect native Uint8Array support.

Generate string from a token array by interpolating values.

mdast utility to generate a table of contents from a tree

Test if a value is an array.

Determine the name of a value's constructor.

Test if a value is a Float64Array.

Convert between POSIX and Windows paths.

Return the prototype of a provided object.

Test if a value is an object.

Replace search occurrences with a replacement string.

Detect native Uint32Array support.

Test if a value is a Uint32Array.

Test if a value is a Buffer object.

Test if a value is a Float32Array.

Test if a value is a number.

Return the current working directory.

Detect native Symbol.toStringTag support.

Detect native Float32Array support.

Determine the specification defined classification of an object.

Test if a value is object-like.

Return an unsigned 32-bit integer corresponding to the more significant 32 bits of a double-precision floating-point number.

Determine a value's type.

Test if a value is a plain object.

Platform byte order.

Detect native Float64Array support.

Get a property from an object using dot (object path) notation.

Create a regular expression from a regular expression string.

Create a double-precision floating-point number from a higher order word and a lower order word.

Test if a value is a Uint8Array.

Detect native Uint16Array support.

Test if a value is a Uint16Array.

Detect native Buffer support.

Return an integer corresponding to the unbiased exponent of a double-precision floating-point number.

Split a double-precision floating-point number into a higher order word and a lower order word.

Check if an environment is big endian.

Test if a double-precision floating-point numeric value is infinite.

Read data from stdin.

Command-line interface.

Function which does nothing.

Ethereum RPC and Provider errors

(IEC) Utility to parse a string bytes to bytes and vice-versa

Add a callback to the next tick queue.

Platform float word order.

Check if an environment is little endian.

Convert a string to lowercase.

hast utility to get the plain-text value of a node

Test if a value is a regular expression string.

UI utilities

A collection of useful utilities.

vfile utility to parse the YAML front matter in a file

Simple CLDR traverser

Tiny wrapper around ansi-colors to add colored symbols and a timestamp.

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

A crawling file watcher.

Merge two lists, trying to preserve the order of both

unist utility to select nodes with CSS-like selectors

mdast utility to parse a comment marker

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.

Escape regular expression special characters

<!-- This file is AUTO-GENERATED, edit _README.template.md or tweak scripts/generateDocs.ts -->

Minimum utility toolbelt

Flattens React children and fragments to an array with predictable and stable keys

Various utility functions

Return a copy of the object only containing the whitelisted properties.

mdast utility to get the style of a heading

unist utility to create a new tree by mapping all nodes

Flatten a nested array.

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

Transform deprecated styling attributes on HAST table cells to inline styles

Utility to make vitest tests fail when console.error() or console.warn() are used

mdast utility to transform to nlcst

Escape regular expression special characters

Easy way to mock process.env during BDD testing

Ultra tiny, opinionated, positioning engine.

hast utility to find and replace text in a tree

A minimal dom utility toolbelt

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

Simple function that return the first non null or undefined argument

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.

Cross-browser type assertions (less broken typeof)

Convert Errors & Objects into an easily-serialized vanilla Object.

Get the prototype chain of any value as an Array

Recursively omit empty properties from an object. Omits empty objects, arrays, strings or zero.

Assert utility from yeoman

A library of Javascript utility functions with an emphasis on Functional Programming.

Emit `ETIMEDOUT` or `ESOCKETTIMEDOUT` when ClientRequest is hanged

less broken typeof

Simplified, lightweight HTTP client library

Utility to find webpack settings in react-scripts and other situations

Returns a shallow copy of an object without blacklisted properties

Gets you the Cypress test command log as JSON on failure

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

unist utility to find a node

hast utility to merge class names together

Convert react components to plain text without any HTML markup

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

Returns true if a filepath starts with the given string. Works with windows and posix/unix paths.