Fan.js
A simple and easy-to-understand implementation of Promise/A+ spec for learning.
Install / Use
/learn @dukeluo/Fan.jsREADME
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fan.js
fan.js is a implementation of the Promise/A+ spec written in ES5. It uses a simple and easy-to-understand style that closely matches every line of the spec. fan.js is a good example to reference when creating your own Promise and to help you learn the Promise/A+ spec.
Tasks for Creating Your Own Implementation of Promises/A+ Spec
- Read the specification with use cases. Do it again if you have no idea how to begin.
- Define the Promise class or constructor.
- Make the Promises/A+ Compliance Test Suite works well with your code.
- Define the then() method.
- Implement chaining.
- Handle errors.
Running the Test Suite
fan.js has passed all the tests in the Promises/A+ Compliance Test Suite.
To run all the tests, use the following command:
npm run test
The Promises/A+ Compliance Test Suite organizes tests by spec requirements. If you want to run the tests for a specific requirement, use a command like:
npm run test -- grep 2.1.2
