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CONTRIBUTING.md

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#READ BEFORE CREATING A NEW ISSUE

The issue tracker is for bug reports and feature requests. If you'd like help with a usage question please use the [bluebird] tag in Stack Overflow and ask there. The tag is monitored regularly. You may also discuss things that are out of scope for the issue tracker on the mailing list.

Contributing to bluebird

  1. Directory structure
  2. Style guide
  3. Testing

Directory structure

  • /benchmark contains benchmark scripts and stats of benchmarks

  • /tools contains building and testing tools and scripts

  • /src contains the source code

  • /test contains test code

    • /test/mocha contains tests using the mocha testing framework
    • /test/browser a directory that can be statically served using a webserver to run tests in browsers. See testing in browsers.

Style guide

Use the same style as is used in the surrounding code.

###Whitespace

  • No more than 80 columns per line
  • 4 space indentation
  • No trailing whitespace
  • LF at end of files
  • Curly braces can be left out of single statement if/else/else ifs when it is obvious there will never be multiple statements such as null check at the top of a function for an early return.
  • Add an additional new line between logical sections of code.

###Variables

  • Use multiple var statements instead of a single one with comma separator. Do not declare variables until you need them.

###Equality and type checks

  • Always use === except when checking for null or undefined. To check for null or undefined, use x == null.
  • For checks that can be done with typeof: do not make helper functions, save results of typeof to a variable or make the type string a non-constant. Always write the check in the form typeof expression === "constant string" even if it feels like repeating yourself.

Testing

Make sure that all the tests run before and after you make your additions. Look in the testing section in README.md for how to run the tests. Add relevant new tests.