JavaScript FlowControl

Summary

JS Assessment for JavaScript flow control knowledge. The exercise consist of a few simple tasks. You are supposed to implement functions, having provided only the function name and purpose.

Goals

Your solutions should be placed inside app/flowControl.js file(inside window.flowControlAnswers object).

fizzBuzz(number):

Write a function that receives one parameter and:

• if the number is divisible by 3, the function should return 'fizz'
• if the number is divisible by 5, the function should return 'buzz';
• if the number is divisible by 3 and 5, the function should return fizzbuzz;
• if the number is not divisible by 3 nor 5, the function should return that number;
• if parameter is not a number it should return false

whileLoop(iterator)

Returns number of elements available through iterator where iterator is a function returning next available element. If no more element is available iterator returns null.

forLoop(start, end)

Returns array of numbers between start (inclusive) and end (exclusive). i.e.: forLoop(100,102) => [100, 101]

exceptions(array)

Returns sum of elements in array. If any element of array is not a number an exception should be thrown with message according to folowing pattern:

Item at index {index} is not a number

i.e. if first element of array is not a number the message should be:

Item at index 0 is not a number

Before you start...

JavaScript basic functions:

http://www.w3schools.com/jsref/

Javascript EcmaScript5 tutorials and more:

https://developer.mozilla.org/en-US/docs/Web/JavaScript

Setup

To install dependencies

npm install

JShint

To run verify jshint:

grunt jshint:default

Run tests

To start developing unit tests

grunt test:dev

To run tests and static analysis

npm test

Good luck!