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Singleton Pubsub\n[![Travis](https://img.shields.io/travis/johnsylvain/singleton-pubsub.svg)](https://travis-ci.org/johnsylvain/singleton-pubsub)\n[![npm](https://img.shields.io/npm/v/singleton-pubsub.svg)](https://npmjs.org/package/singleton-pubsub)\n![dependancies](https://img.shields.io/badge/dependencies-zero-brightgreen.svg)\n\u003e A performant Pub/Sub interface wrapped in a singleton\n\n## Features\n- Super tiny (~210b g-zipped)\n- No dependencies\n- Small API with method chaining\n- Singleton impletation for usage in large applications\n- Create multiple functions for a single event\n\n## Installation\n```bash\n# via yarn\nyarn add singleton-pubsub\n\n# via npm\nnpm install singleton-pubsub --save\n```\n#### or via [download](https://raw.githubusercontent.com/johnsylvain/singleton-pubsub/master/index.js)\n```html\n\u003cscript src=\"path/to/singleton-pubsub.js\"\u003e\u003c/script\u003e\n```\n\n## Usage\n```js\nimport SingletonPubsub from 'singleton-pubsub'\n\n// Instantiate a default instance\nconst pubsub = new SingletonPubsub();\n\n// Instantiate a named instance\nconst altPubsub = new SingletonPubsub('alternate');\n\n// Subscribe to events via handlers\npubsub\n  .on('load', ({ message }) =\u003e {\n    console.log(message) // =\u003e 'loaded!'\n  })\n  .on('event', (data) =\u003e {\n    console.log(data)\n  })\n\n// Emit (publish) events\npubsub\n  .emit('load', {\n    message: 'loaded!'\n  })\n\n// Unsubscribe from an event\nconst onEvent = (data) =\u003e console.log(data)\n\npubsub\n  .on('event', onEvent)\n  .off('event', onEvent)\n\n// Creating a new instance will give access to the same events\nconst pubsub2 = new SingletonPubsub()\n\npubsub2\n  .emit('load', {\n    message: 'pubsub2 works!'\n  })\n\n\n// Create a new clean instance in the same application\nconst cleanPubsub = new SingletonPubsub('instance', {\n  reinstantiate: true\n})\n```\n\n\n## Contributing\nYou can request a new feature by submitting an issue. If you would like to implement a new feature feel free to issue a Pull Request.\n\n## License\nsingleton-pubsub is protected under the [MIT License](https://github.com/johnsylvain/singleton-pubsub/blob/master/LICENSE)","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjohnsylvain%2Fsingleton-pubsub","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Fjohnsylvain%2Fsingleton-pubsub","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Fjohnsylvain%2Fsingleton-pubsub/lists"}