JSPM

A collection of essential TypeScript types

Higher-order functions and common patterns for asynchronous code

User-friendly glob matching

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

HTTP and HTTPS modules that follow redirects.

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.

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

ES2019 spec-compliant String.prototype.trimStart shim.

Escape string for use in HTML

ES2019 spec-compliant String.prototype.trimEnd 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 recursively walk over nodes, with ancestral information

A simple utility for conditionally joining classNames together

unist utility to visit nodes

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

unist utility to check if a node passes a test

vfile utility to create a virtual message

mdast utility to get the plain text content of a node

micromark utility to handle character codes

micromark utility with symbols

A small utility for creating warnings and emitting them.

micromark utility with a couple of typescript types

mdast utility to parse markdown

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

micromark utility to resolve subtokens

micromark utility to decode markdown strings

micromark utility to tokenize subtokens

micromark utility to decode numeric character references

micromark utility to sanitize urls

micromark utility with list of html tag names

micromark utility to encode dangerous html characters

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to splice and push with giant arrays

mdast utility to serialize markdown

mdast utility to transform to hast

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

micromark utility to combine syntax or html extensions

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

unist utility to get the position of a node

mdast utility to check if a node is phrasing content

hast utility to create trees

hast utility to create an element from a simple CSS selector

mdast extension to parse and serialize GFM autolink literals

mdast utility to find and replace text in a tree

mdast extension to parse and serialize GFM strikethrough

Escape a string for use in HTML or the inverse

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 (GitHub Flavored Markdown)

Cypress's fork of a simplified HTTP request client.

mdast utility to find definition nodes in a tree

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

mdast extension to parse and serialize GFM footnotes

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

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

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

Correctly declare progressive enhancements for CSS Custom Properties.

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

unist utility to remove positions from a tree

hast utility to reparse a tree

hast utility to transform from a `parse5` AST

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

A fast 642B utility that makes reading multipart responses simple

hast utility to transform to a `parse5` AST

Utilities for watching file trees.

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

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

unist utility to check if a node is generated

Utility Types Collection for TypeScript

hast utility to serialize to HTML

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

esast (and estree) utility to visit nodes

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 create a new trees with a nice syntax

Lightweight and faster alternative to Ramda with included TS definitions

unist utility to get a position from an estree node

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

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

hast utility to transform to estree (JavaScript AST) JSX

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

Common utility functions for oas-kit

unist utility to find a node after another node

estree (and esast) utility to serialize to JavaScript

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

hast utility to parse from HTML

unist utility to remove nodes from a tree

Type assertions aka less-broken `typeof`

A cross platform Promise.allSettled polyfill

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

Simplified HTTP request client.

function binding utility

Prototype inheritance utility

hast utility to check if a node has a property

Get the last or last n elements in an array.

Simple help and sanity checks for Node CLI bin scripts

nlcst utility to transform a tree to a string

Function argument validation for humans

hast utility to sanitize nodes

estree (and esast) utility to parse from JavaScript

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

hast utility to create a tree from the DOM

unist utility to find nodes after another node

esast utility to transform from estree

unist utility to modify direct children of a parent

mdast extension to parse and serialize math

mdast utility to remove empty paragraphs from a tree

React utility to merge refs.

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

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

unist utility to visit direct children of a parent

Small, performant & immutable iteration utilities for Arrays and Objects

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

Utilities for watching file trees.

Utility data structure used in discord.js

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

vfile utility to create a report for a file

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

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

mdast utility to make a tree compact

vfile utility to sort messages by line/column

hast utility to check if a node is an embedded element

A utility library for JavaScript and Typescript.

Similar to String#trim() but removes only newlines

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

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

hast utility to check if a node is phrasing content

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

Ethereum RPC and Provider errors.

unist utility to inspect nodes

vfile utility to read and write to the file system

Determine a value's type.

Determine the specification defined classification of an object.

Ethereum RPC and Provider errors

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

Detect native Symbol support.

Detect native Float64Array support.

Test if a value is a Uint8Array.

Detect native Uint16Array support.

Test if a value is a Uint16Array.

Detect native Symbol.toStringTag support.

Test if an object has a specified property.

Define (or modify) an object property.

Test if a value is a string.

Function which does nothing.

Insert supplied variable values into a format string.

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

Escape a regular expression string or pattern.

Platform float word order.

Check if an environment is little endian.

Test if a value is a boolean.

Replace search occurrences with a replacement string.

Test if a value is a function.

Return the current working directory.

Detect native Float32Array support.

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

Test if a value is a Float64Array.

Return the global object.

Convert between POSIX and Windows paths.

Test if a value is a regular expression.

Test if a value is object-like.

Generate string from a token array by interpolating values.

Detect native Uint32Array support.

Test if a value is a Uint32Array.

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

Test if a value is a Buffer object.

Test if a value is an array.

Test if a value is a plain object.

Determine the name of a value's constructor.

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

Detect native Uint8Array support.

Detect native Buffer support.

Define a non-enumerable read-only property.

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

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.

Return the prototype of a provided object.

Test if a value is an object.

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

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

Add a callback to the next tick queue.

Test if a value is a Float32Array.

Test if a value is a number.

Read data from stdin.

Platform byte order.

Create a regular expression from a regular expression string.

Command-line interface.

Convert a string to lowercase.

Test if a value is a regular expression string.

mdast utility to generate a table of contents from a tree

UI utilities

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

Convenience wrapper for Got to interact with the GitHub API

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

vfile utility to parse the YAML front matter in a file

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

A collection of useful utilities.

Simple CLDR traverser

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

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.

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Escape regular expression special characters

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

mdast utility to parse a comment marker

unist utility to select nodes with CSS-like selectors

Minimum utility toolbelt

Merge two lists, trying to preserve the order of both

A crawling file watcher.

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

A minimal dom utility toolbelt

Flatten a nested array.

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

Transform deprecated styling attributes on HAST table cells to inline styles

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

Ultra tiny, opinionated, positioning engine.

unist utility to create a new tree by mapping all nodes

Cross-browser type assertions (less broken typeof)

mdast utility to get the style of a heading

mdast utility to transform to nlcst

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

hast utility to find and replace text in a tree

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

Simple function that return the first non null or undefined argument

Various utility functions

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

Convert react components to plain text without any HTML markup

hast utility to merge class names together

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

less broken typeof

Returns a shallow copy of an object without blacklisted properties

Get the prototype chain of any value as an Array

here-document on node.js

Gets you the Cypress test command log as JSON on failure

Convert Gitignore to Glob patterns

Simplified, lightweight HTTP client library

Easy way to mock process.env during BDD testing

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

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

unist utility to find a node

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

es-escape-html rewrite for ESM

TOAST UI Utility: CodeSnippet