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897 packages found
Reactive primitives for observing resizing of HTML elements.
Watch an object or array for changes
Track React component in viewport using Intersection Observer API
React component for the Intersection Observer API
A simple library that lets you know whether a Component is visible or not.
Fully Typed PubSub Mechanism with Channel and Payload autocompletion.
Dispatch and listen for DOM mutations
A simple alternative to events and signals with an emphasis on performance.
Custom, simple, extendable event/messaging system written in ES6
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.
Utility components for working with the viewport in react
A library for declarative use of Resize Observer API with Angular
msgm 是一个拥抱类型安全的发布订阅模式库 并且可以控制优先级
Primitives to support using the intersection observer API.
object-observer utility provides simple means to (deeply) observe specified object/array changes; implemented via native Proxy; changes delivered in a synchronous way
- object
- array
- observe
- observer
- object observe
- object.observe
- observable
- changes
- deep
- tree
- graph
- javascript
- proxy
- C
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A library for declarative use of Intersection Observer API with Angular
Publish–subscribe pattern implementation
The Reactive Extensions for JavaScript
Message delivery subsystem (Observer pattern implementation).
A library for declarative use of Mutation Observer API with Angular