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843 packages found
Simple and modern async event emitter
Environment agnostic event emitter
GSAP is a robust JavaScript toolset that turns developers into animation superheroes. Build high-performance animations that work in **every** major browser. Animate CSS, SVG, canvas, React, Vue, WebGL, colors, strings, motion paths, generic objects...any
- GSAP
- GreenSock
- animation
- MotionPathPlugin
- motion
- motionPath
- matchMedia
- easing
- ScrollTrigger
- ScrollSmoother
- Observer
- JavaScript
- PixiPlugin
- CustomEase
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React resize detector
Monitor if a component is inside the viewport, using IntersectionObserver API
A polyfill for the Resize Observer API
Track React component in viewport using Intersection Observer API
A polyfill for IntersectionObserver
A simple set of functions for intercepting and observing JavaScript objects and arrays.
Lightweight React bindings for MobX based on React 16.8+ and Hooks
A Svelte action that monitors an element enters or leaves the viewport or a parent element. Performant and efficient thanks to using Intersection Observer under the hood.
- svelte
- observer
- observing
- intersection
- viewport
- inviewport
- in-view
- in-viewport
- inview
- observe
- waypoint
- intersection-observer
- intersection-observer-api
- performance
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A basic array observer which listen's for array item changes
Monster is a simple library for creating fast, robust and lightweight websites.
Maps smart TVs remote control keys to a common pattern for Clappr.
Deep state observer is an state management library that will fire listeners only when specified object node (which also can be a wildcard) was changed.
Supervisor, Coroutine, Channel, select, AtomicPromise, Cancellation, Cache, List, Queue, Stack, and some utils.
- supervisor
- observer
- coroutine
- channel
- select
- cancellation
- sequence
- maybe
- either
- monad
- arrow
- cache
- clock
- list
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Polyfills the ResizeObserver API and supports box size options from the latest spec
- ResizeObserver
- polyfill
- ponyfill
- event
- resize
- observer
- typescript
- javascript
- element
- component
- container
- queries
- web components
- front-end
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javascript library for listening to data changes of child objects
Create observable object. You can work with it as with a regular hash, while using subscriptions to the events of adding an element, changing and deleting
- proxy
- bind
- observable
- observe
- observer
- watch
- object
- hash
- array
- events
- track
- properties
- property change
- dynamic object
A light weight, comprehensive, reactive framework for business logic.
- rxjs
- reactive
- observer
- addEventListener
- drools
- nools
- rools
- clips
- ops5
- rules
- bacon
- spreadsheet
- hypercalc
- excel
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