Hacktoberfest 2018 JS Utils

The point of this repository to build a suite of javascript methods by the time hacktoberfest ends! Let's get some T-shirts!
Original repo by @rgehan.

Installation

You first need to fork the repository, then clone it, go in the directory and run:

# Install the dependencies
yarn

How to participate

Find an issue that is not assigned yet
Implement it so that it passes all the tests (use yarn test src/[methodName].test.js to run the tests)
Add a skeleton of a new method along with new test suite for it
Now we have fixed a method, written the skeleton of a new one, and a test suite to accompany it, so we can push our changes and open a pull request.
Create an issue for your new feature

Rules

Each PR should contain 3 files: implementation of the method you've been assigned to, a skeleton of a new one for someone else to work on and a test suite for it.
Make sure your implementation passes the previous tests before opening a Pull Request.
Do not use any npm functions or javascript built-in methods.

Project Structure

All methods will live in the src directory. They should be written as [methodName].js.

All tests will live in the test directory. A test file should be formatted [methodName].test.js to reflect what method is being tested.

A skeleton of new method

export default () => {
  // TO IMPLEMENT IN ANOTHER PR
};

Test suite example

import abs from '../src/abs';

describe('abs', () => {
  test('absolute of 0 to equal 0', () => {
    expect(abs(0)).toBe(0);
  });

  test('absolute of 1 to equal 1', () => {
    expect(abs(1)).toBe(1);
  });

  test('absolute of -1 to equal 1', () => {
    expect(abs(-1)).toBe(1);
  });
});