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897 packages found
Simple observer pattern implementation for VueJS
MobX and MobX-State-Tree store selector for using with mobx-react-lite
Extension of EventEmitter that allows for multiple objects to act as shared observers
ES5 function wrappers and ES7/ES2016 decorators.Works great with React/Angular/more!
An easy to use React hook wrapper around the IntersectionObserver API.
Detect when a DOM element changes size or position
A simple implementation of the observer pattern written in TypeScript, usable in JavaScript as well.
Provides a way with extra configuration options to execute a handler when a given element is on view.
- viewport
- events
- lazy
- load
- mobile
- cordova
- phonegap
- window
- document
- performance
- resize
- scroll
- responsive
- state
- View more
An event emitter framework that allows you to control the full event lifecycle.
👓 A straight-forward interface to retrieving performance timing metrics.
- PerformanceObserver
- PerformanceTiming
- PerformanceNavigationTiming
- PerformanceResourceTiming
- PerformancePaintTiming
- PerformanceEventTiming
- getEntries
- observer
- promise
- async
- await
- 👓
Know if some element is being viewed and trigger to anything you want.
Fast, asynchronous, and regex-enabled event framework for Node.js
Universal light Event Emitter
- browser
- node.js
- universal
- publish
- subscribe
- listen
- message
- sender
- receiver
- observer
- push
- distribution
- event
- emitter
MutationObserver shim for ES3 environments
JavaScript Deep Proxy that can have listeners added
A Vue.js component to lazy load images using the Intersection Observer
React resize detector
State watcher for Redux.
Lazyload component props with IntersectionObserver API