JSPM

ECMAScript parsing infrastructure for multipurpose analysis

ES Object-related atoms: Object, ToObject, RequireObjectCoercible

An Esprima-compatible JavaScript parser built on Acorn

Returns true if an object was created by the `Object` constructor, or Object.create(null).

micromark extension to support MDX or MDX JS expressions

recma plugin to serialize JavaScript

recma plugin to parse JavaScript

recma plugin to add support for parsing and serializing JSX

JavaScript port of Apache Commons Validator

Check if something can be an ecmascript (javascript) identifier name

esast (and estree) utility to visit nodes

hast utility to transform to estree (JavaScript AST) JSX

All in one Javascript validator

unist utility to get a position from an estree node

remark plugin to support MDX syntax

Transform JSX in estrees to function calls (for react, preact, and most hyperscript interfaces)

micromark extension to support MDX or MDX.js JSX

A simple cache for a few of the JS Error constructors.

Attach comments to estree nodes

`Object.defineProperty`, but not IE 8's broken one.

JavaScript object query engine

esast utility to transform from estree

abstract syntax tree

the acorn javascript parser, preloaded with plugins for syntax parity with recent node versions

Check what’s defined in an estree scope

recma plugin to add support for parsing and serializing JSX

ECMAScript parsing infrastructure for multipurpose analysis

recma plugin to transform HTML (hast) to JS (estree)

Analyze or create a CLABE number for a Mexican bank account (written in functional TypeScript)

micromark extension to support MDX JS import/exports

JS type check (TypeScript supported) functions like `isPlainObject() isArray()` etc. A simple & small integration.

Define a data property on an object. Will fall back to assignment in an engine without descriptors.

JavaScript image compressor.

Get and robustly cache all JS language-level intrinsics at first require time

Autocomplete prompt for inquirer

A query library for ECMAScript AST using a CSS selector like query language.

Is this an arguments object? It's a harder question than you think.

forgJs is a javascript lightweight object validator.

Automatically validate API requests and responses with OpenAPI 3.

Merge objects & other types recursively. A simple & small integration.

New syntax to add attributes to Markdown.

🦅 cli syntax highlighting: any function - any object - 176 languages

Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data.

Polyfill for Metadata Reflection API

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

0-Deps, simple, fast, for browser and node js object schema validator

`Iterator.prototype`, or a shared object to use.

Validate JS variable names

Parse binary files with a schema into nicely readable objects

> Convenient JavaScript function that serializes Objects to FormData instances.

Runtime library for TypeScript helper functions

Natural Sort algorithm for Javascript - Version 0.7 - Released under MIT license

Babel preset to parse the Salesforce Design System React source code.

Does the current environment have `import()` support?

A 100% compliant, self-hosted javascript parser with high focus on both performance and stability

Simple module to localize the React interface using the same syntax used in the ReactNativeLocalization module

Parses CSS inline style to JavaScript object (camelCased).

🌈 Light, fast, and easy to use, dependencies free javascript syntax highlighter, with automatic language detection

GitLab Code Quality generator for IBM's OpenAPI Validator.

JavaScript utilities with respect to emerging standard

Is the value an object or an array but not null?

This package is inspired by Laravel validation, and aims to make body validation easier for Javascript developers

A JavaScript validation library, with types!

Wallet address validator for Bitcoin and other Altcoins.

Wallet address validator for Bitcoin and other Altcoins.

Multicoin address validator for Bitcoin and other altcoins.

Stringify is to `eval` as `JSON.stringify` is to `JSON.parse`

Protocol Buffer Validation for ECMAScript

A lightweight configurable javascript validator

A JavaScript (JS) Map or Similar object polyfill if Map is not available.

Like `extend` but only copies missing properties/values to the target object.

JavaScript library for DOM operations

Parses JavaScript objects into XML

Flow types for the Javascript AST

Reduces an object to a value that is the accumulated result of running each property in the object through a callback. Executes the callback function once for each own enumerable property in the object, receiving four arguments: the initial value (or valu

Backbone model validator allows you to define validation rules for model and utilize it for model-standalone validation or bind its events to the view so you can display errors if needed.

Alerts are a Markdown extension based on the blockquote syntax that you can use to emphasize critical information.

A parser that converts TypeScript source code into an ESTree compatible form

Simple module to localize the strings of any JS based program using the same syntax used in the ReactLocalization and ReactNativeLocalization module, use 'npm run build' before publishing

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.

An ESLint custom parser which leverages TypeScript ESTree

A simple module that works exactly as Object.assign, but skips assigning undefined values.

Visual diff between javascript variables

hast utility to check if an element is a JavaScript script

Simple API validation for Express routes.

Which kind of boxed JS primitive is this?

Unbox a boxed JS primitive value.

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

A simple Vue.js 3 plugin for handling browser cookies

Make weak references to JavaScript Objects.

A cypress child command for drag'n'drop support.

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

regexpu’s core functionality (i.e. `rewritePattern(pattern, flag)`), capable of translating ES6 Unicode regular expressions to ES5.

rehype plugin to remove content of external JavaScript `script` elements

A simple, beautiful, and embeddable JavaScript Markdown editor. Features autosaving and spell checking.

A JavaScript text diff implementation.

Symbiote.js - close-to-platform frontend library for building super-powered web components

Markdown-like DSL for defining syntactic grammars for programming languages.

Flexible and performant utility for traversing javascript objects

Micro parser for detection of literal regexes

Error classes used in node_redis

An ESnext spec-compliant `Object.groupBy` shim/polyfill/replacement that works as far down as ES3.

Make weak references to JavaScript Objects.

A polyfill for Array.prototype.flat and Array.prototype.flatMap

Validate JavaScript source.

Provides TypeScript methods to map a JSON object to a JavaScript object on runtime

AST utils for webassemblyjs

Array-slice method. Slices `array` from the `start` index up to, but not including, the `end` index.

A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.

Sham for ES6 Object.getOwnPropertyDescriptor

Tooling which enables you to use TypeScript with ESLint

Simulate react-select events for react-testing-library

Structured logging via heimdalljs

Promptbook: Run AI apps in plain human language across multiple models and platforms

Validate JavaScript code and report possible syntax errors

Simple templating using a config.json and regex patterns

rehype plugin to minify `script` elements with a JS body

rehype plugin to minify JavaScript URLs

rehype plugin to Mminify event handler attributes

Support for using highlight.js to syntax highlight cURL commands.

Vue 3 CodeBlock - Highlight your code with ease using this syntax highlighting component powered by PrismJS or Highlight.js.

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

rehype plugin to remove `type` and `language` on JavaScript scripts

TypeScript shorties for the web

1KB lightweight, fast & powerful JavaScript templating engine with zero dependencies. Compatible with server-side environments like Node.js, module loaders like RequireJS, Browserify or webpack and all web browsers.

A modern TypeScript validation library designed around familiar interface syntax and powerful conditional validation. Experience schema validation that feels natural to TypeScript developers while unlocking advanced runtime validation capabilities.

Easy test setup without side effects

Use next generation JavaScript, today

Generates markdown API documentation from jsdoc annotated source code

A lightweight form validation library with modular functions

Broccoli plugin that allows simple caching (while still allowing N:N) based on the input tree hash.

A JavaScript validation package, based on Laravel validation.

Uniquely flexible and light-weight utility for cloning and deep (recursive) merging of JavaScript objects. Supports descriptor values, accessor functions, and custom prototypes. Provides advanced options for customizing the clone/merge process.

walk an AST, quickly

Used to determine whether an object has an own property with the specified property key.

A pure javascript BMP encoder and decoder

Syntax highlights JavaScript code with ANSI colors to be printed to the terminal.

Less strict version of micromark-extension-mdx-jsx.

Simple Perforce API

Fast Wallet address validator for Bitcoin and other Altcoins.

Lightweight immutable helper that allows you to continue working with Plain JavaScript Objects

Get the last or last n elements in an array.

`AsyncIterator.prototype`, or a shared object to use.

ECMAScript parsing infrastructure for multipurpose analysis

Split SDK

Fast, small, efficient JavaScript memoization lib to memoize JS functions

Isomorphic client library for supporting long-running operations in node.js and browser.

Add context awareness to your apps and frameworks by safely evaluating user-defined conditional expressions. Useful for evaluating expressions in config files, prompts, key bindings, completions, templates, and many other user cases.

Simple GraphQL Query Builder

Write your project's environments' configs out to JSON files.

Like `extend` but recursively copies only the missing properties/values to the target object.

A 100% compliant, self-hosted typescript parser that emits an ESTree-compatible abstract syntax tree

serialize objects to javascript

A babel preset for transforming your JavaScript for Airbnb

Utility for adding Functions files in Netlify Build

A simple Vue.js plugin for handling browser cookies

React native library to validate form fields

This package validates IP address and its version

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

Microsoft Azure Storage SDK for JavaScript - Blob

It iterates through a graph or a tree recursively

Escape strings for use as JavaScript string literals

Syntax highlighter for nlux

Run GraphQL queries with no schema and just one resolver

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

Do not repeat anymore your objects transformations.

asttv - abstract syntax tree to value

Use next generation JavaScript, today

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

Regular expression for matching JavaScript identifiers

Utility for running commands inside Netlify Build

CloudEvents SDK for JavaScript

Typescript compiler wrapper

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

Optionals for JS - wrapper for possibly undefined values, inspired by Java Optional API

Netlify config module

A tool that generates a strongly typed client library for any GraphQL endpoint. The client allows writing GraphQL queries as plain JS objects (with type safety, awesome code completion experience, custom scalar type mapping, type guards and more)

A quick & dirty Gradle build file to JavaScript object parser

Reserved words that may not be used as variables, functions, methods, or object identifiers, since ECMAScript specifies special behavior for them.

A simple, beautiful, and embeddable JavaScript Markdown editor that easy to use. Features include autosaving and spell checking.

Check if a string is a valid JavaScript identifier

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

Easy HTML form validator written in TypeScript with tree-shaking

o3 - Javascript Class Framework

Crypto wallet address validator for Bitcoin and other Altcoins.

Gracefully parse ECMAScript static imports 💃

Provides a list of reserved identifiers for JavaScript

Broccoli plugin that allows you to filter files selected from an input node down based on regular expressions.

A micro-library for collecting stylesheet data from link and style nodes

ES6-compliant shim for ToObject.

Lightweight solution for merging multiple objects into one. Also it supports deep merge and deep clone

ES6-compliant shim for RequireObjectCoercible.

get a list of identifiers that are initialised by a JavaScript AST node.

Colors of Google's Material Design made available to coders

Return the closest element matching a selector up the DOM tree

Determine if a value is object like.

Source map generation for Pug v2.x (aka Jade)

A lightweight URL library for JavaScript.

SecureEventEmitter is a tiny javascript package that uses restrict rules and mechanisms to build safer and protected event-driven architecture. It's similar to nodejs EventEmitter, but dictates stricter rules to prevent misuse.

Appium Configuration Schema

JavaScript barcode generator supporting over 100 types and standards.

Type definitions for Lottie Abstract Syntax Tree (LAST)

Sweeter, faster and simpler than truffle.

Javascript library made to validate, several form fields, such as: email, images, phone, password, cpf etc.

Comprehensive TypeScript/JavaScript utility library with cross-environment support (Node.js, browser, web worker) providing helper functions, polyfills (ES5-ES2023), type checking utilities, and optimized implementations for better minification and code r

A library that drives the visual grid with dom snapshot rendering.

A powerful and flexible JavaScript form validator for HTML forms/Express.js.

a simple, fast and robust email validator

A JavaScript parser

Appium 2.x driver for Chromium-based browsers that work with Chromedriver

Microsoft Dynamic Proto Utility

Polyfill for object-fit and object-position CSS properties on video elements

Human-friendly process signals

Dynamic validators to be used with @kitmi/types based on @kitmi/jsonv and @kitmi/jsonx

TypeScript is a language for application scale JavaScript development

Seeder package for MikroORM.

List of properties for JavaScript objects

Intuitive and powerful language for building webapps that fly

The Just-Good-Enough XML Toolkit

[](http://badge.fury.io/js/angular.validators) [](http://badge.fury.io/bo/angular.validators) [![Build Status](https://travis-c

Convert a HTML form to an a JavaScript plain object (multi-dimensional).

Does a JS type have a property

The modern CSS-in-JS library

A lightweight Astro component for syntax highlighting and rendering beautifully formatted code blocks.

A robust, ES3 compatible, "has own property" predicate.

`Object.getOwnPropertyDescriptor`, but accounts for IE's broken implementation.

An AST-based pattern checker for JavaScript.

Human-friendly process signals. This is a fork of ehmicky/human-signals, but with CommonJS support.

Invokes function, returning an object of the results.

Common modules used by @theintern projects

Robustly `.call.bind()` a function

The modern CSS-in-JS library

Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.

Transforms styleName to className using compile time CSS module resolution.

Pattern matching for JavaScript

A compiler for "Ecmarkdown" algorithm shorthand into HTML.

Express ES6 string template engine

TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Supports MongoDB, MySQL, PostgreSQL and SQLite databases as well as usage with vanilla JavaScript.

ES7 Polyfill for Metadata Reflection API with Universal and Webpack support

For use with webpack globalObject.

Set a function's length property

Node.js library editing Windows Resource data

Robust call-bound JavaScript intrinsics, using `call-bind` and `get-intrinsic`.

ES2019 spec-compliant String.prototype.trimStart shim.

Is this value a JS SharedArrayBuffer?

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

Gets the description of a Symbol. Handles `Symbol()` vs `Symbol('')` properly when possible.

ESLint JavaScript language implementation

A pure typescript BMP encoder and decoder