Add basic boilerplate code for javascript katas

Dockerfile

@@ -0,0 +1,9 @@
+FROM node:8.4.0-alpine
+
+WORKDIR "/opt/katas"
+
+RUN npm install -g jest
+
+COPY . $WORKDIR
+
+CMD ["jest", "--watchAll"]

LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2017 Vicente Pons
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -0,0 +1,14 @@
+Boilerplate code for javascript katas
+=====================================
+
+This repository is a boilerplate code for using when we are going to start a new kata in javascript.
+
+### Getting Started
+
+In order to use it, we must install [docker](https://docs.docker.com/engine/installation/) to run it with a container, or install a standard node development environment and run it in your local machine.
+
+To run the project with docker, we can do the following:
+
+    $ ./bin/start
+
+Now, thanks to [jest](https://facebook.github.io/jest), every time we save a change, we'll see how the tests run automatically at the terminal.

bin/start

@@ -0,0 +1,11 @@
+#!/bin/sh
+trap 'exit 1' SIGSEGV SIGTERM
+
+docker build -t js-boilerplate .
+
+docker run -it \
+  --rm \
+  --mount type=bind,source="$(pwd)",target=/opt/katas \
+  js-boilerplate
+
+exit $?

package.json

@@ -0,0 +1,6 @@
+{
+  "name": "kata name",
+  "jest": {
+    "verbose": true
+  }
+}

test/example.test.js

@@ -0,0 +1,5 @@
+describe('Example', () => {
+  it('test the truth', () => {
+    expect(true).toBe(true);
+  });
+});