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Generic object state management with events
Simple state manager that uses objects to store and track state. Manage the object normally as it additionally provides events to listen to state changes.
ObState uses Proxy
s to handle state changes, and then emits events using a standard EventEmitter
interface.
Import the createStateObject
method and use it to wrap an object (a new object is returned, the old is not mutated):
import { createStateObject } from "obstate";
const state = createStateObject({
name: "Jane Doe",
age: 24
});
state.on(
"before",
({ property, newValue, currentValue }) =>
console.log(`Will update '${property}': ${currentValue} => ${newValue}`)
);
state.on(
"update",
({ property, newValue, oldValue }) =>
console.log(`Did update '${property}': ${oldValue} => ${newValue}`)
);
Object.assign(state, {
name: "John Doe",
age: 22
});
The example above would output:
Will update 'name': Jane Doe => John Doe
Did update 'name': Jane Doe => John Doe
Will update 'age': 24 => 22
Did update 'age': 24 => 22
react-obstate
is a react toolkit that provides hooks for using state instances in React components.
v0.1.4
2023-07-16
package.json
FAQs
Generic object state management with events
The npm package obstate receives a total of 258 weekly downloads. As such, obstate popularity was classified as not popular.
We found that obstate demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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