mirror of https://github.com/jkjoy/sunpeiwen.git
74 lines
2.4 KiB
Markdown
74 lines
2.4 KiB
Markdown
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get-ready
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=====
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[![NPM version][npm-image]][npm-url]
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[![build status][travis-image]][travis-url]
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[![Test coverage][codecov-image]][codecov-url]
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[![David deps][david-image]][david-url]
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[![npm download][download-image]][download-url]
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[npm-image]: https://img.shields.io/npm/v/get-ready.svg?style=flat-square
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[npm-url]: https://npmjs.org/package/get-ready
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[travis-image]: https://img.shields.io/travis/node-modules/ready.svg?style=flat-square
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[travis-url]: https://travis-ci.org/node-modules/ready
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[codecov-image]: https://codecov.io/github/node-modules/ready/coverage.svg?branch=master
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[codecov-url]: https://codecov.io/github/node-modules/ready?branch=master
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[david-image]: https://img.shields.io/david/node-modules/ready.svg?style=flat-square
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[david-url]: https://david-dm.org/node-modules/ready
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[download-image]: https://img.shields.io/npm/dm/get-ready.svg?style=flat-square
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[download-url]: https://npmjs.org/package/get-ready
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**Fork from [supershabam/ready](https://github.com/supershabam/ready)**
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NodeJS mixin to add one-time ready event
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## Purpose
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Events are great. You should use events, but not for signaling ready! Ready implies state, and once you are ready, you stay ready.
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This is a module for everyone who has bound an event handler.on('ready', function() {}) that doesn't execute because you added the handler after the 'ready' event already fired.
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## Warning
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If you use this mixin, you must have 'ready', '_ready', and '_readyCallbacks' available on your class. Ready will stomp on these variables if you're trying to use them in your class.
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## Example
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```javascript
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var ready = require('ready');
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// example class that uses Ready
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function MyClass() {
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this.someProperty = 'some value';
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}
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ready.mixin(MyClass.prototype);
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// Normal class prototype functions
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MyClass.prototype.doSomeWork = function() {};
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// Create a new class that uses ready mixin
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var myClass = new MyClass();
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// Add callback for when myClass is ready
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myClass.ready(function() {
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console.log('I am now ready');
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});
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myClass.doSomeWork();
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// We are now ready, fire callbacks!
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myClass.ready(true);
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// Adding a new callback once we're already ready gets executed immediately
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myClass.ready(function() {
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console.log('I came late to the party, but I will still execute.');
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});
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// Ok, you can set the ready state to false now as well... for whatever reason
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myClass.ready(false);
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myClass.ready(function() {
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console.log('I will not fire until you set ready to true again.');
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});
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```
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## License
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[MIT](LICENSE)
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