# reactive-primitives

> Platform primitives for building reactive applications

Latest version **0.0.3** (published 2023-10-26) · MIT license · 0 weekly downloads

## Install

```sh
npm install reactive-primitives
pnpm add reactive-primitives
yarn add reactive-primitives
bun add reactive-primitives
```

## Health

**Score 35/100 (D)** — status: abandoned.

Positive: esm support; no vulnerabilities; high maintenance score.

Warnings: low downloads; no types; pre 1.0.

Negative: abandoned.

## Facts

| | |
|---|---|
| Version | 0.0.3 |
| Published | 2023-10-26 |
| First published | 2023-10-26 |
| Weekly downloads | 0 |
| License | MIT |
| TypeScript types | none |
| Module format | ESM + CommonJS |
| Dependencies | 2 |
| Unpacked size | 20.5 KB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 19 |
| Author | NullVoxPopuli |
| Maintainers | nullvoxpopuli |
| Keywords | ember-addon |

## Links

- npm: https://www.npmjs.com/package/reactive-primitives
- Repository: https://github.com/universal-ember/reactive-primitives
- Homepage: https://github.com/universal-ember/reactive-primitives#readme
- Issues: https://github.com/universal-ember/reactive-primitives/issues
- npm.io page: https://npm.io/package/reactive-primitives

## Dependencies (2)

- [ember-resources](https://npm.io/package/ember-resources.md) ^6.4.2
- [@embroider/addon-shim](https://npm.io/package/@embroider/addon-shim.md) ^1.8.6

## Recent versions

- 0.0.3 (latest) — 2023-10-26
- 0.0.2 — 2023-10-26
- 0.0.1 — 2023-10-26
- 0.0.0 — 2023-10-26

## README

# reactive-primitives

A collection of utilities for helping applications be more reactive.

This library intends to provide convinence utilities for allow derived data patterns and easy reactivity to be added to applications.

## Compatibility

- Ember.js v4.8 or above
- Embroider or ember-auto-import v2

## Installation

```
pnpm add reactive-primitives
```

## Usage

### `ReactiveImage`


Usage in a component
```gjs
import { ReactiveImage } from 'reactive-primitives/image';

<template>
  {{#let (ReactiveImage 'https://path.to.image') as |state|}}
     {{#if imgState.isResolved}}
       <img src={{imgState.value}}>
     {{/if}}
  {{/let}}
</template>
```

Usage in a class
```js
import { use } from 'ember-resources';
import { ReactiveImage } from 'reactive-primitives/image';

class Demo {
  @use imageState = ReactiveImage('https://path.to.image');
}
```

Reactive usage in a class
```js
import { tracked } from '@glimmer/tracking';
import { use } from 'ember-resources';
import { ReactiveImage } from 'reactive-primitives/image';

class Demo {
  @tracked url = '...';
  @use imageState = ReactiveImage(() => this.url);
}
```

### `WaitUntil`

Usage in a component
```gjs
import { WaitUntil } from 'reactive-primitives/wait-until';

<template>
  {{#let (WaitUntil 500) as |delayFinished|}}
    {{#if delayFinished}}
 
      text displayed after 500ms
 
    {{/if}}
  {{/let}}
</template>
```

Usage in a class
```js
import { use } from 'ember-resources';
import { WaitUntil } from 'reactive-primitives/wait-until';

class Demo {
  @use delayFinished = WaitUntil(500);

  get isFinished() {
    return this.delayFinished; // true after 500ms
  }
}
```

Reactive usage in a class
```js
import { tracked } from '@glimmer/tracking';
import { use } from 'ember-resources';
import { ReactiveImage } from 'reactive-primitives/image';

class Demo {
  @tracked delay = 500;
  @use delayFinished = WaitUntil(() => this.delay);

  get isFinished() {
    return this.delayFinished; // true after this.delay ms
  }
}
```

## Contributing

See the [Contributing](CONTRIBUTING.md) guide for details.

## License

This project is licensed under the [MIT License](LICENSE.md).

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_Source: https://npm.io/package/reactive-primitives · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._