JSPM

A collection of essential TypeScript types

User-friendly glob matching

Higher-order functions and common patterns for asynchronous code

HTTP and HTTPS modules that follow redirects.

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

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

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

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 recursively walk over nodes, with ancestral information

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

unist utility to check if a node passes a test

mdast utility to get the plain text content of a node

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

unist utility to visit nodes

micromark utility with symbols

A simple utility for conditionally joining classNames together

micromark utility to handle character codes

vfile utility to create a virtual message

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 sanitize urls

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

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

micromark utility to combine syntax or html extensions

mdast utility to serialize markdown

micromark utility to classify whether a character is whitespace or punctuation

mdast utility to transform to hast

micromark utility to splice and push with giant arrays

micromark utility to resolve subtokens

micromark utility to decode numeric character references

micromark utility to tokenize subtokens

micromark utility with list of html tag names

unist utility to get the position of a node

micromark utility to decode markdown strings

mdast utility to check if a node is phrasing content

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

hast utility to create an element from a simple CSS selector

hast utility to create trees

mdast utility to find and replace text in a tree

mdast extension to parse and serialize GFM strikethrough

mdast extension to parse and serialize GFM tables

Escape a string for use in HTML or the inverse

mdast extension to parse and serialize GFM task list items

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

Cypress's fork of a simplified HTTP request client.

mdast extension to parse and serialize GFM autolink literals

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

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

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

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

mdast extension to parse and serialize GFM footnotes

hast utility to transform from a `parse5` AST

mdast utility to find definition nodes in a tree

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

Correctly declare progressive enhancements for CSS Custom Properties.

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

unist utility to remove positions from a tree

hast utility to transform to a `parse5` AST

hast utility to reparse a tree

Utility Types Collection for TypeScript

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

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

A fast 642B utility that makes reading multipart responses simple

hast utility to serialize to HTML

unist utility to check if a node is generated

Utilities for watching file trees.

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

return whitelisted properties of an object

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

esast (and estree) utility to visit nodes

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

unist utility to create a new trees with a nice syntax

Common utility functions for oas-kit

hast utility to transform to estree (JavaScript AST) JSX

Lightweight and faster alternative to Ramda with included TS definitions

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

unist utility to find a node after another node

estree (and esast) utility to serialize to JavaScript

hast utility to parse from HTML

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

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

unist utility to remove nodes from a tree

Type assertions aka less-broken `typeof`

A cross platform Promise.allSettled polyfill

Simplified HTTP request client.

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

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

function binding utility

Prototype inheritance utility

estree (and esast) utility to parse from JavaScript

hast utility to check if a node has a property

Function argument validation for humans

mdast extension to parse and serialize math

hast utility to sanitize nodes

Get the last or last n elements in an array.

esast utility to transform from estree

Simple help and sanity checks for Node CLI bin scripts

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

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

mdast utility to remove empty paragraphs from a tree

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

nlcst utility to transform a tree to a string

unist utility to visit direct children of a parent

React utility to merge refs.

unist utility to find nodes after another node

unist utility to modify direct children of a parent

hast utility to create a tree from the DOM

Small, performant & immutable iteration utilities for Arrays and Objects

Utilities for watching file trees.

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

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

Utility data structure used in discord.js

mdast utility to make a tree compact

vfile utility to create a report for a file

A utility library for JavaScript and Typescript.

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

vfile utility to sort messages by line/column

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

hast utility to check if a node is an embedded element

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

Similar to String#trim() but removes only newlines

Ethereum RPC and Provider errors

Ethereum RPC and Provider errors.

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

hast utility to check if a node is phrasing content

vfile utility to read and write to the file system

unist utility to inspect nodes

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

Detect native Symbol support.

Test if a value is a string.

Insert supplied variable values into a format string.

Escape a regular expression string or pattern.

Test if a value is a boolean.

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

Test if a value is a function.

Test if a value is a Float64Array.

Test if a value is an array.

Test if a value is a Uint32Array.

Detect native Uint32Array support.

Determine the name of a value's constructor.

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

Convert between POSIX and Windows paths.

Test if a value is object-like.

Define a non-enumerable read-only property.

Generate string from a token array by interpolating values.

Determine the specification defined classification of an object.

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

Test if a value is a Buffer object.

Detect native Symbol.toStringTag support.

Test if a value is a plain object.

Test if an object has a specified property.

Define (or modify) an object property.

Return the global object.

Test if a value is a regular expression.

Return the prototype of a provided object.

Test if a value is an object.

Platform byte order.

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

Determine a value's type.

Test if a value is a Float32Array.

Test if a value is a number.

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

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

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

Replace search occurrences with a replacement string.

Create a regular expression from a regular expression string.

Check if an environment is big endian.

Detect native Float64Array support.

Detect native Uint8Array support.

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

Return the current working directory.

Detect native Float32Array support.

Read data from stdin.

Test if a value is a Uint8Array.

Detect native Uint16Array support.

Test if a value is a Uint16Array.

Command-line interface.

Function which does nothing.

mdast utility to generate a table of contents from a tree

Check if an environment is little endian.

Platform float word order.

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

Test if a value is a regular expression string.

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

Detect native Buffer support.

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

Convert a string to lowercase.

Convenience wrapper for Got to interact with the GitHub API

Add a callback to the next tick queue.

UI utilities

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

vfile utility to parse the YAML front matter in a file

A collection of useful utilities.

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.

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

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

Simple CLDR traverser

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

mdast utility to parse a comment marker

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

Escape regular expression special characters

Minimum utility toolbelt

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

unist utility to select nodes with CSS-like selectors

A crawling file watcher.

Flatten a nested array.

Ultra tiny, opinionated, positioning engine.

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

Merge two lists, trying to preserve the order of both

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

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

mdast utility to get the style of a heading

A minimal dom utility toolbelt

hast utility to find and replace text in a tree

Transform deprecated styling attributes on HAST table cells to inline styles

unist utility to create a new tree by mapping all nodes

mdast utility to transform to nlcst

Cross-browser type assertions (less broken typeof)

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.

Various utility functions

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

Convert Gitignore to Glob patterns

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

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

Get the prototype chain of any value as an Array

less broken typeof

Returns a shallow copy of an object without blacklisted properties

hast utility to merge class names together

here-document on node.js

Gets you the Cypress test command log as JSON on failure

Easy way to mock process.env during BDD testing

Convert react components to plain text without any HTML markup

Escape regular expression special characters

Simplified, lightweight HTTP client library

unist utility to find a node

Format an error message for production.

es-escape-html rewrite for ESM

A collection of decorators using lodash at it's core.

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