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javascript/current

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+hello-world

javascript/hello-world/README.md

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+# Hello World
+
+Write a program that greets the user by name, or by saying "Hello, World!" if no name is given.
+
+["Hello, World!"](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program) is the traditional first program for beginning programming in a new language.
+
+**Note:** You can skip this exercise by running:
+
+    exercism skip $LANGUAGE hello-world
+
+## Specification
+
+The `Hello World!` program will greet me, the caller.
+
+If I tell the program my name is Alice, it will greet me by saying "Hello, Alice!".
+
+If I neglect to give it my name, it will greet me by saying "Hello, World!"
+
+## Test-Driven Development
+
+As programmers mature, they eventually want to test their code.
+
+Here at Exercism we simulate [Test-Driven Development](http://en.wikipedia.org/wiki/Test-driven_development) (TDD), where you write your tests before writing any functionality. The simulation comes in the form of a pre-written test suite, which will signal that you have solved the problem.
+
+It will also provide you with a safety net to explore other solutions without breaking the functionality.
+
+### A typical TDD workflow on Exercism:
+
+1. Run the test file and pick one test that's failing.
+2. Write some code to fix the test you picked.
+3. Re-run the tests to confirm the test is now passing.
+4. Repeat from step 1.
+5. [Submit your solution](http://help.exercism.io/submitting-exercises.html).
+
+## Instructions
+
+Submissions are encouraged to be general, within reason. Having said that, it's also important not to over-engineer a solution.
+
+It's important to remember that the goal is to make code as expressive and readable as we can. However, solutions to the hello-world exercise will be not be reviewed by a person, but by rikki- the robot, who will offer an encouraging word.
+
+## Setup
+
+Go through the setup instructions for JavaScript to
+install the necessary dependencies:
+
+http://help.exercism.io/getting-started-with-javascript.html
+
+## Making the Test Suite Pass
+
+Execute the tests with:
+
+```bash
+$ jasmine-node .
+```
+
+In many test suites all but the first test have been skipped.
+
+Once you get a test passing, you can unskip the next one by
+changing `xit` to `it`.
+
+
+## Source
+
+This is a program to introduce users to using Exercism [view source](http://en.wikipedia.org/wiki/%22Hello,_world!%22_program)

javascript/hello-world/hello-world.js

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+//
+// This is only a SKELETON file for the 'Hello World' exercise. It's been provided as a
+// convenience to get you started writing code faster.
+// Make sure to look at test.script.js--that should give you some hints about what is
+// expected here.
+
+var HelloWorld = function() {};
+
+HelloWorld.prototype.hello = function(input) {
+//
+// YOUR CODE GOES HERE
+//
+};
+
+module.exports = HelloWorld;

javascript/hello-world/hello-world.spec.js

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+var HelloWorld = require('./hello-world');
+
+describe('Hello World', function() {
+  var helloWorld = new HelloWorld();
+
+  it('says hello world with no name', function() {
+    expect(helloWorld.hello('')).toEqual('Hello, World!');
+  });
+
+  xit('says hello to bob', function() {
+    expect(helloWorld.hello('Bob')).toEqual('Hello, Bob!');
+  });
+
+  xit('says hello to sally', function() {
+    expect(helloWorld.hello('Sally')).toEqual('Hello, Sally!');
+  });
+});