JSPM

A collection of essential TypeScript types

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.

Higher-order functions and common patterns for asynchronous code

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

HTTP and HTTPS modules that follow redirects.

Escape string for use in HTML

User-friendly glob matching

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

ES2019 spec-compliant String.prototype.trimStart shim.

ES2019 spec-compliant String.prototype.trimEnd shim.

Type check values

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 check if a node passes a test

micromark utility with symbols

Bindings for the Watchman file watching service

mdast utility to get the plain text content of a node

micromark utility with a couple of typescript types

CLI app helper

unist utility to visit nodes

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

micromark utility to handle character codes

mdast utility to parse markdown

micromark utility to splice and push with giant arrays

A small utility for creating warnings and emitting them.

vfile utility to create a virtual message

micromark utility to resolve subtokens

micromark utility to classify whether a character is whitespace or punctuation

micromark utility to decode markdown strings

mdast utility to transform to hast

mdast utility to serialize markdown

micromark utility to encode dangerous html characters

unist utility to get the position of a node

micromark utility to sanitize urls

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

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

mdast utility to check if a node is phrasing content

micromark utility to combine syntax or html extensions

micromark utility with list of html tag names

micromark utility to decode numeric character references

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

micromark utility to tokenize subtokens

A simple utility for conditionally joining classNames together

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

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

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

mdast utility to find and replace text in a tree

mdast extension to parse and serialize GFM strikethrough

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

hast utility to create trees

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

hast utility to create an element from a simple CSS selector

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)

mdast extension to parse and serialize GFM autolink literals

mdast extension to parse and serialize GFM footnotes

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

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

hast utility to transform from a `parse5` AST

hast utility to reparse a tree

hast utility to serialize to HTML

hast utility to transform to a `parse5` AST

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

Escape a string for use in HTML or the inverse

unist utility to remove positions from a tree

unist utility to find a node after another node

mdast utility to find definition nodes in a tree

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

Cypress's fork of a simplified HTTP request client.

hast utility to parse from HTML

Utility Types Collection for TypeScript

Correctly declare progressive enhancements for CSS Custom Properties.

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

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

esast (and estree) utility to visit nodes

A fast 642B utility that makes reading multipart responses simple

unist utility to get a position from an estree node

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

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

A utility library for JavaScript and Typescript.

hast utility to sanitize nodes

hast utility to transform to estree (JavaScript AST) JSX

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

hast utility to create a tree from the DOM

estree (and esast) utility to serialize to JavaScript

mdast extension to parse and serialize math

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

unist utility to check if a node is generated

Common utility functions for oas-kit

esast utility to transform from estree

estree (and esast) utility to parse from JavaScript

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

return whitelisted properties of an object

Utilities for watching file trees.

unist utility to create a new trees with a nice syntax

hast utility to check if a node has a property

Lightweight and faster alternative to Ramda with included TS definitions

nlcst utility to transform a tree to a string

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

unist utility to visit direct children of a parent

Function argument validation for humans

unist utility to modify direct children of a parent

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

Type assertions aka less-broken `typeof`

unist utility to remove nodes from a tree

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

Simplified HTTP request client.

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

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

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

hast utility to check if a node is phrasing content

hast utility to check if a node is an embedded element

A cross platform Promise.allSettled polyfill

React utility to merge refs.

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

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

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

Prototype inheritance utility

Utility data structure used in discord.js

function binding utility

Ethereum RPC and Provider errors

Get the last or last n elements in an array.

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

Simple help and sanity checks for Node CLI bin scripts

vfile utility to create a report for a file

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

unist utility to find nodes after another node

vfile utility to sort messages by line/column

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

mdast utility to remove empty paragraphs from a tree

Small, performant & immutable iteration utilities for Arrays and Objects

Utilities for watching file trees.

vfile utility to read and write to the file system

Determine the specification defined classification of an object.

Return the global object.

Detect native Symbol support.

mdast utility to make a tree compact

Test if a value is a string.

vfile utility to parse the YAML front matter in a file

Test if a value is a regular expression.

unist utility to inspect nodes

Define a non-enumerable read-only property.

Determine a value's type.

Escape a regular expression string or pattern.

Test if a value is a boolean.

Test if a value is a function.

Test if a value is object-like.

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

Detect native Float64Array support.

Insert supplied variable values into a format string.

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

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

Return the prototype of a provided object.

Test if a value is an object.

Test if a value is a Uint16Array.

Detect native Uint16Array support.

Detect native Uint8Array support.

Test if a value is a Uint8Array.

Test if a value is a Float64Array.

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

Platform float word order.

Check if an environment is little endian.

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

Detect native Uint32Array support.

Test if a value is a Uint32Array.

Test if a value is a Float32Array.

Test if a value is a 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.

Detect native Symbol.toStringTag support.

Define (or modify) an object property.

Test if a value is an array.

Determine the name of a value's constructor.

Test if an object has a specified property.

Test if a value is a Buffer object.

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

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

Convert between POSIX and Windows paths.

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

Replace search occurrences with a replacement string.

Generate string from a token array by interpolating values.

Test if a value is a plain object.

Ethereum RPC and Provider errors.

Function which does nothing.

Return the current working directory.

Platform byte order.

Convenience wrapper for Got to interact with the GitHub API

Detect native Float32Array support.

Similar to String#trim() but removes only newlines

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

Convert a string to lowercase.

Test if a value is a regular expression string.

Read data from stdin.

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

Create a regular expression from a regular expression string.

Detect native Buffer support.

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

Command-line interface.

Add a callback to the next tick queue.

Minimum utility toolbelt

mdast extension to parse and serialize highlight mark

mdast utility to generate a table of contents from a tree

UI utilities

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

Simple CLDR traverser

A minimal dom utility toolbelt

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

A collection of useful utilities.

TypeScript 類型工具庫：提供豐富的類型操作工具和重新導出的內建類型 / TypeScript type utility library: provides rich type manipulation utilities and re-exported built-in types

unist utility to select nodes with CSS-like selectors

mdast utility to parse a comment marker

Flatten a nested array.

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.

unist utility to create a new tree by mapping all nodes

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

Ultra tiny, opinionated, positioning engine.

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

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

Various utility functions

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

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

hast utility to find and replace text in a tree

hast utility to transform to the DOM

Transform deprecated styling attributes on HAST table cells to inline styles

mdast utility to get the style of a heading

Merge two lists, trying to preserve the order of both

A crawling file watcher.

Format an error message for production.

Simple merge utility to extend objects without extra dependencies

Test if a finite numeric value is an odd number.

hast utility to merge class names together

Utilities for react-native + iOS and wrappers for using swift together with fabric/paper + JSI

Replace search occurrences with a replacement string.

Cross-browser type assertions (less broken typeof)

Test if a finite double-precision floating-point number is an integer.

Convert a string to lowercase.

Test if a finite numeric value is an even number.

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

Set the more significant 32 bits of a double-precision floating-point number.

Return an unsigned 32-bit integer corresponding to the IEEE 754 binary representation of a single-precision floating-point number.

Get the prototype chain of any value as an Array

Set the less significant 32 bits of a double-precision floating-point number.

取得陣列唯一值，支援深度比較巢狀物件和陣列 / Get unique values from array with deep comparison for nested objects and arrays

unist utility to find a node

mdast utility to transform to nlcst

Escape regular expression special characters

Convert an unsigned 32-bit integer to a signed 32-bit integer.

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

Constant function.