https://github.com/damianc/hot-generator

Allows making the hot generators
https://github.com/damianc/hot-generator

es6 generator generator-functions hot-generators javascript sharing

Last synced: about 1 month ago
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Allows making the hot generators

• Host: GitHub
• URL: https://github.com/damianc/hot-generator
• Owner: damianc
• Created: 2019-07-14T22:11:50.000Z (over 5 years ago)
• Default Branch: master
• Last Pushed: 2020-04-05T09:17:36.000Z (over 4 years ago)
• Last Synced: 2024-11-10T16:21:54.332Z (about 2 months ago)
• Topics: es6, generator, generator-functions, hot-generators, javascript, sharing
• Language: JavaScript
• Size: 11.7 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 5
• Metadata Files:
  • Readme: README.md

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README

        
# Hot Generator

Wraps a generator so that it shares the current value among all the instances.

## Usage

```

var hotNums = new HotGenerator(function* () {

	yield* [1, 2, 3, 4];

});

var genA = hotNums();

var genB = hotNums();

genA.next();

// {value: 1, done: false}

genB.next();

// {value: 2, done: false}

genA.next();

// {value: 3, done: false}

genB.next();

// {value: 4, done: false}

genA.next();

// {value: undefined, done: true}

```

### `last()` method

The `last()` method of `HotGenerator` receives the last known value returned from any instance of a generator.

```

var hotNums = new HotGenerator(function* () {

	yield* [1, 2, 3, 4];

});

var genA = hotNums();

var genB = hotNums();

genA.next();

// {value: 1, done: false}

genB.next();

// {value: 2, done: false}

hotNums.last();

// {value: 2, done: false}

```

### `lastFrom()` method

Similar to the `last()` method, but here we can explicitly tell what instance of a generator we are interested in.

```

var hotNums = new HotGenerator(function* () {

	yield* [1, 2, 3, 4];

});

var genA = hotNums();

var genB = hotNums();

genA.next();

// {value: 1, done: false}

genB.next();

// {value: 2, done: false}

genA.next();

// {value: 3, done: false}

hotNums.last();

// {value: 3, done: false}

hotNums.lastFrom(genA);

// {value: 3, done: false}

hotNums.lastFrom(genB);

// {value: 2, done: false}

```

### Caveats

Currently it is impossible to pass arguments to any of the generators. The problem is that each newest instance of a generator would override behavior of all previous, so far defined generators.