# Leap

Given a year, report if it is a leap year.

The tricky thing here is that a leap year in the Gregorian calendar occurs:

```text
on every year that is evenly divisible by 4
  except every year that is evenly divisible by 100
    unless the year is also evenly divisible by 400
```

For example, 1997 is not a leap year, but 1996 is.  1900 is not a leap
year, but 2000 is.

## Notes

Though our exercise adopts some very simple rules, there is more to
learn!

For a delightful, four minute explanation of the whole leap year
phenomenon, go watch [this youtube video][video].

[video]: http://www.youtube.com/watch?v=xX96xng7sAE

## Setup

Go through the setup instructions for Javascript to install the necessary
dependencies:

[https://exercism.io/tracks/javascript/installation](https://exercism.io/tracks/javascript/installation)

## Requirements

Please `cd` into exercise directory before running all below commands.

Install assignment dependencies:

```bash
$ npm install
```

## Making the test suite pass

Execute the tests with:

```bash
$ npm test
```

In the test suites all tests but the first have been skipped.

Once you get a test passing, you can enable the next one by changing `xtest` to
`test`.


## Submitting Solutions

Once you have a solution ready, you can submit it using:

```bash
exercism submit leap.js
```

## Submitting Incomplete Solutions

It's possible to submit an incomplete solution so you can see how others have
completed the exercise.

## Exercise Source Credits

JavaRanch Cattle Drive, exercise 3 [http://www.javaranch.com/leap.jsp](http://www.javaranch.com/leap.jsp)

