JSPM

Typed errors that closely emulate the native Error class.

assertion library that throws user-specified error types (accepts error class and message)

'Extensible Error Class' implementation and predefined additional error types for javascript

Properly create error classes

A better error class for 'maxBuffer exceeded' errors

Easy error subclassing and stack customization

Make your own error types!

richer JavaScript errors

A general base Error class that can be extended to create custom Error classes

Make your own nested error types!

Create custom JavaScript errors that also match instanceof.

It makes simple throw qualified errors.

Use Custom Selectors in CSS

Use Custom Properties Queries in CSS

Use Custom Media Queries in CSS

Correctly declare progressive enhancements for CSS Custom Properties.

Cross-browser `CustomEvent` constructor

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

Custom Error class for `util.inherits`

Listr verbose renderer

Performance-aware simple logger for React-Native with namespaces, custom levels and custom transports (colored console, file writing, etc.)

A custom element for extending the native media elements (<audio> or <video>)

A completely customizable framework for building rich text editors.

Chakra UI ControlBox component

Create custom error classes

A javascript scrollbar plugin that hides the native scrollbars, provides custom styleable overlay scrollbars, and preserves the native functionality and feel.

A tiny library to create custom errors in JavaScript.

Custom webpack builders for Angular build facade. Allow to modify Angular build configuration without ejecting it

easier than regex string matching patterns for urls and other strings. turn strings into data or data into strings.

React component to generate a QR Code customizable with logo and more properties

Custom authentication strategy for Passport.

An in-place pre-processor for javascript files using C style pre-compile syntax to compose custom builds from npm-packages

Easily generate "custom" error objects with addition properties which can be stringfied with JSON.stringify

richer JavaScript errors

React scrollbars component

Use Happy DOM globally in a Node.js environment for testing.

A stylelint rule to disallow usage of unknown custom properties

Listr verbose renderer

Doesn't throw an error when JSON.parse() fails, just returns undefined

<symbol> that can be used to declare custom inspect functions.

Helps you create a custom element w/ a HTMLMediaElement API.

Client-side support for CSS custom properties (aka "CSS variables") in legacy and modern browsers

Create custom commands using plain-old functions

JSON parser and stringifier for custom numbers (e.g. BigInt)

A Serverless plugin to define IAM Role statements as part of the function definition block

A better error-handler for Lad and Koa. Makes `ctx.throw` awesome (best used with koa-404-handler)

Indent strings.

React scrollbars component

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

OverlayScrollbars for React.

Use Happy DOM as environment in Jest.

Handy Moment.js filters for your Vue.js project

The best React custom scrollbars component

Text and TextInput with mask for React Native applications

jest html reporter (results processor) to view HTML jest results, save raw JSON, and invoke multiple reporters

A small, fast and crossbrowser custom scrollbar with native system scroll mechanic.

Collection of awesome react hooks

Lightweight emoji picker distributed as a web component

Utility to extend existing ESLint rules

Validates custom element names according to the custom elements spec

A module for sending responses from lambda-funciton backed custom resources in AWS CloudFormation

Yaml input field with validation and syntax highlighting as React Component

Custom env is a library built to make development more feasible by allowing multiple .env configurations for different environments.

The remark plugin for supporting custom heading id also including default id

All inclusive customElements polyfill for every browser

A lightweight web component that traps focus within a DOM node

Angular custom directives for validation

Custom esbuild builders for Angular build facade. Allow to modify Angular build configuration without ejecting it

A react native component with the same concept of react native's SegmantedControlIOS, Primarily built to support both IOS and Android.

A thin wrapper around the debug logging package

React scrollbars component

A highly optimized pure JS implementation of Range Slider for React Native

My custom eslint rules in addition to the ones provided at http://eslint.org/

Wrap your component up as a custom element

Custom error object.

An extensible class to define hyperHTML based Custom Elements

OverlayScrollbars for Vue.

Generic errors with common http codes

Skate is a library built on top of the W3C web component specs that enables you to write functional and performant web components with a very small footprint.

A custom React hook for adding keyboard shortcuts to your application

Print on Epson, Star, Tranca, Daruma, Brother and Custom thermal printers with Node.js

Dev server generic builder for Angular build facade. Allows to run custom builder in serve target

A solid BaseError class that supports custom properties and wrapping errors

A angular(4+) select dropdown for single select or multiselct module.

Your custom errors in your JavaScript code

Enforce usage of custom media queries in CSS

GrapesJS component for the embed of custom code

HTML5 HTMLElement.dataset ponyfill

Sass component for customizing the input range using the native properties of each browser.

An async/await module for sending responses from lambda-funciton backed custom resources in AWS CloudFormation

Validate the name of a custom element

Helps you construct a custom string parser, for times when you need something more procedural than regex.

Barebones code to generate a uid of custom length

Customizable React roulette wheel with spinning animation

Inline SVGs in CSS. Supports SVG Fragments, SVG Parameters.

lighterhtml based custom elements builtins

VError without dependencies on top of nodejs standart library

React scrollbars component

Set nested values on an object using a dot path or custom separator

A simple React Native component that takes an array of data and renders a SectionList with alphabetically sorted data.

Get a property from a nested object using a dot path or custom separator

A lightweight blazing-fast internationalization (i18n) library for your next web-based project

Customizable, extensible, accessible and framework agnostic media player.

Creates an object composed of the picked object properties from a nested object using a dot path or custom separator

OverlayScrollbars for Angular.

Add arbitrary custom callbacks to sequelize

A customizable step component written in Svelte

Generate RegExp for delimiters, to be used with templates, files or data streams.

Adds fallbacks to your CSS var() functions

Filter an array using any combination of scalars, object queries, functions or regular expressions.

Load modules, link modules to another module-names, manage access to custom / local scripts as modules

Generate a function that returns a constant.

simple custom scrollbar made by svelte

catch errors in your hapi application and display the appropriate error message/page

React bindings for the Vime media player.

Listen for native and custom DOM events

AngularJS directive to use Material Design icons with custom fill color and size.

A Serverless plugin to define IAM Role statements as part of the function definition block

A Serverless plugin that makes creation of per function IAM roles easier

Handy Pluralize filters for your Vue project

Font loader optimized for maximum performance. Removes render-blocking font resources and loads them asynchronusly. Handle FOUT & FOUC with font loading status watcher. Supports both local-hosted fonts and web fonts.

🧩 Create flavoured string template interpolation

A simple and fully customizable React checkbox input component.

Custom hash generator (based on MD5 algorithm)

Simple yet highly customizable console logger for node.js. Supports templating output, custom log levels, custom log types, and colored output.

Tailwind CSS plugin that exposes Tailwind colors as custom CSS properties

PowerBI Custom Visuals webpack plugin

vue 2 google map custom marker component allowing display custom html content on google map using gmap-vue

Module for creating connect-style middlewares. Dependency-free. Runs in the browser and node.js

Custom scrollbars with native scrolling

The Configuration Management library for your JavaScript application

[](https://travis-ci.org/WebReflection/babel-plugin-transform-builtin-classes) [![donate](https://img.shields.io/badge/$-donate-ff69b4.svg?maxAge=

Automatically transform Mongoose validation error message(s) to a humanized and readable format

This library implements functions to use the adopted style of web components for multiple themes.

OverlayScrollbars for Svelte.

well-formatted, extendable pino logger for hapi.js

Sopplayer is a sleek and feature-rich HTML5 video player that enhances the visual experience of videos on web pages. It offers compatibility across devices and browsers, supporting various video formats. With intuitive controls and customizable options, S

A small web component to enhance scrollable elements with dynamic scroll indicators.

React component for custom scrollbars with native scrolling

😲 Create custom reaction pickers and counters or use your favorites!

A lightweight, modular and stand-alone JavaScript implementation of a string formatting function that supports composite format strings, globalization and customization

Sanity plugin to upload and preview inline SVGs

CustomEvent ponyfill

Heroic. Reactive. Declarative. Type safe. Web components without compromise.

 [](https://www.npmjs.com/package/theme-custom-properties) [![](https://img.shields.io/github/lic

Snap page when user stops scrolling, with a customizable configuration and a consistent cross browser behaviour

Custom Icon Lib for React Native.

Nominal types for better typesafety

This repository contains an Angular > 2 version of [angular-cron-jobs](http://angular-cron-jobs.github.io/angular-cron-jobs).

OverlayScrollbars for Solid.

Manager for running foreign and potentionally dangerous scripts in the cluster

Configurable custom GraphQL Scalars (string, number, date, etc) with sanitization / validation / transformation in TypeScript.

A stylelint rule to disallow usage of unknown custom properties

Mongoose plugin to use String _id and by default will generate 16-char base64 string representation of ObjectId.

A configurable custom input number type for GraphQL with sanitization and validation.

The most complete Snowflake ID generator in TypeScript

Node.js module providing utility functions for AWS Cloudformation Custom Resources.

Quickly mock various console methods in Vitest and track their calls with custom matchers

Angular custom directives for validation

A base custom element class with a reliable `parsedCallback` method

A production-grade error creation and serialization library designed for Typescript

TypeDoc theme that adds some useful options (header links, custom style and script, ability to create files etc)

NgxMatErrors provides an easy, yet flexible solution for displaying error messages in a MatFormField.

A baseline UI as Mixins, Custom Elements, React Components, etc.

React scrollbars component

Loader module for webpack to execute your custom procedure. It works as your custom loader.

Knockout bindings to Twitter Bootstrap 3

Wrap your component up as a custom element

A simple and highly versatile design system using element-vir.

Create an entire web theme.

File Drop Custom Element

A delightfully simple theme system for docsify.js. Features multiple themes with rich customization options, an improved desktop and mobile experience, and legacy browser support (IE11+).

Custom marker overlay for the @agm/core package

A really simple logger for web server or others

Easily build custom error types

A library for checking and casting types.

Custom Playwright reporter that generates a Markdown file documenting app features based on test cases

Happy DOM is a JavaScript implementation of a web browser without its graphical user interface. It includes many web standards from WHATWG DOM and HTML.

Customizable String Formatter

marked extension template

Components for the DOM as you've never seen before

Alternative to JSON.stringify() that supports altering the behavior of the stringification process at string level

Tiny module implementing a pool of connect-style domain-agnostic middleware layers. Runs in the browser and node.js

Simple customizable Vue.js timepicker component

A highly customizable vuejs tree

data-cy shorthand notation for cypress get and find functions

A fully customizable rating component for react and next.js

Web Components &amp; Custom Elements for Professional Web Applications

Pure javascript mask plugin to use anywhere you like

Add Custom fonts support to jsPDF

Set of helpful functions and types for Custom Card creators

Simple, precise, and chainable React Custom PropTypes.

Mongoose ES Map object support

Export custom media queries, custom properties, custom property sets, and custom selectors from CSS as JavaScript variables

Run Python on n8n.

n8n node to detect if something changed between the current execution and the previous one.

Custom-made npm UI Component.

A free light weight jQuery plugin that allows you to create a custom drop down with images and description.

Default SassDoc theme used in Ignite UI for Angular.

> > A very lightweight PostCSS plugin to strip comments. No configuration available at this time.

Custom n8n node for Z-API.

configurable template string replacement

An efficient and fast web component that gives you a beautiful masonry layout

React component to generate a QR Code customizable with logo and more properties

A generator for converting your text into a signature image depending on your font style

A stylelint rule to disallow usage of unknown custom properties

JSON serializer that handles Dates, RegExps, Functions or any other type you want

Custom ESLint rules for enforcing best practices

Add slug field to MarkdownRemark and Mdx nodes

Easy Web Components in ~1kB

A SkateJS renderer for Preact.

Custom chunk id generator with appended and prepended strings

Bootstrap 4 Component - Chosen

custom pixi particles

Custom validation error messages for sails model with i18n support

A powerful javascript library to create amazing and smooth effects for the mouse cursor on your website.

A SkateJS renderer for Lit HTML.

CloudFormation custom resource helper for Lambda Node.js runtime

Common types for cross repository use

Native viewport with custom scrollbars 🖱️

Listr renderer with simple tree support (non concurrent tasks)

A node package to simplify interactions with Smiirl objects

A custom React hook for grabbing the caret position in an input field

This plugin let you play any public YouTube video as background of your page. It can also be used as a customized player in page.

Simple callback-based JSON validator for complex use-cases

A helper library to add custom resources to a CloudFormation template

Promisified HTTP client

jQuery plugin for using FontAwesome icons as custom CSS cursors

Our old good friend Clippy as a React Hook!

professional maki chef

Custom CloudFormation resources

lerna cli with custom command extensions, forked with official [lerna](https://www.npmjs.com/package/lerna)

Injects a custom string either before, after, or replacing a specified string in html-webpack-plugin output

a module to handle the regionalized data

Package adding support for custom TypeScript transformers configured in tsconfig.json with ttypescript format.

TextSlicer is designed to split text within an HTML element into separate words and/or characters, wrapping each word and/or character in separate span elements.

HOC to register a custom element which will wrap a React component.

Angular bindings for the Vime media player.

Richer errors with first-class Typescript support.

Vue 3 bindings for the Vime media player.

Create a promise that can be resolved and rejected outside of it

vue 3 google map custom marker component allowing display custom html content on google map using gmap-vue

Use Webpack's enhanced-resolve inside Jest

Custom Types for GraphQL-Tools

Custom errors in javascript (browser and server support)

infragistics theme for typedoc API documentation with versioning and localization

A jquery like event emitter/dispatcher that could be mixed with other objects to provide emitting capabilities ala jQuery Style

Vue Bottom Navigation

automate custom bootstrap sass build

Add custom env variables into your vite bundle