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Contents

# Grains

Calculate the number of grains of wheat on a chessboard given that the number
on each square doubles.

There once was a wise servant who saved the life of a prince. The king
promised to pay whatever the servant could dream up. Knowing that the
king loved chess, the servant told the king he would like to have grains
of wheat. One grain on the first square of a chess board. Two grains on
the next. Four on the third, and so on.

There are 64 squares on a chessboard.

Write code that shows:
- how many grains were on each square, and
- the total number of grains

## For bonus points

Did you get the tests passing and the code clean? If you want to, these
are some additional things you could try:

- Optimize for speed.
- Optimize for readability.

Then please share your thoughts in a comment on the submission. Did this
experiment make the code better? Worse? Did you learn anything from it?

## Setup

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

http://exercism.io/languages/ecmascript

## Requirements

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`.


## Source

JavaRanch Cattle Drive, exercise 6 [http://www.javaranch.com/grains.jsp](http://www.javaranch.com/grains.jsp)

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

Version data entries

68 entries across 68 versions & 1 rubygems

Version Path
trackler-2.2.1.180 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.179 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.178 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.177 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.176 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.175 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.174 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.173 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.172 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.171 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.170 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.169 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.167 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.166 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.165 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.164 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.163 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.162 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.161 tracks/ecmascript/exercises/grains/README.md
trackler-2.2.1.160 tracks/ecmascript/exercises/grains/README.md