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2904 packages found
A React hook that fires a callback whenever ResizeObserver detects a change to its size
- react
- react hook
- resize observer
- resize observer hook
- resize observer react hook
- use-resize-observer
- useresizeobserver
- resize hook
- size hook
Copy file globs, watching for changes.
Simple and modern async event emitter
React + RxJS = <3
- action
- behavior
- concurrent
- es6
- events
- external
- hooks
- observables
- observe
- pipe
- react
- react18
- react19
- reactive
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Monitor if a component is inside the viewport, using IntersectionObserver API
Environment agnostic event emitter
Simple event emitter
A simple set of functions for intercepting and observing JavaScript objects and arrays.
This is iframe observer. Be Able to use it when you need get frame states or event listeners.
Resize observer for React
Lightweight React bindings for MobX based on React 16.8+ and Hooks
A polyfill for the Resize Observer API
A set of tools for emulating browser behavior in jsdom environment
- testing
- jsdom
- jest
- vitest
- mock
- Resize Observer API
- Intersection Observer API
- Web Animations API
- WAAPI
- matchMedia
- viewport
- react
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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Detect when an element is becoming visible or hidden on the page.
Track React component in viewport using Intersection Observer API
A polyfill for IntersectionObserver
Generic PerformanceObserver API wrapper for measuring performance metrics
- performance
- web-vitals
- custom metrics
- first-contentful-paint
- first-paint
- first-input-delay
- largest-contentful-paint
- cumulative-layout-shift
- time-to-first-byte
- element-timing
- navigation-timing
- resource-timing
- user-timing
- longtask
A dangerously convienient, high performance and super lightweight utility (2.7kb) that injects methods into the Object prototype to sugar for many common use cases working with Javascript objects.
GSAP is a framework-agnostic JavaScript animation library 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,
- GSAP
- GreenSock
- animation
- MotionPathPlugin
- motion
- motionPath
- matchMedia
- easing
- ScrollTrigger
- ScrollSmoother
- Observer
- JavaScript
- PixiPlugin
- CustomEase
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