Phase 2 Interview Challenge

This is the challenge for getting into phase 2.

To get started, create a new repository called phase-2-challenge. Do all of your work in this repo and submit it as your solution.

Skills covered:

Programming
Programming in JS
Testing
Node.js
HTML & CSS
Terminal, Bash, & UNIX

Each requirement has a point value. A fully complete requirement gets full points; partially complete requirements get partial points; incomplete requirements get no points. Completeness is determined by calculating points earned divided by total points available.

General Requirements

10: Solution is in a public GitHub repository called phase-2-challenge.
10: Solution repository has 4 folders: part-1, part-2, and part-3, and part-4.
20: Git history shows frequent commits.

Part 1: Write tests and solutions for these functions

For the following exercises, write your functions in a file called part-1/functions.js and your tests in a file called part-1/tests.js.

You can use whichever testing tools you prefer: console.assert() (builtin to Node), Mocha and Chai, Jasmine, etc.

Show a weekday

Write a function weekday(date) to find the weekday for a given Date object, returing either 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat', or 'Sun'.

Example:

let date = new Date(2017, 5, 19) // June 19, 2017
weekday(date) // returns "Mon"

weekday(new Date(2017, 5, 15)) // returns "Thu"

Requirements

10: A test using expected/valid inputs for the weekday() function is written in tests.js.
10: A test using unexpected/invalid inputs for the weekday() function is written in tests.js.
30: Correct implementation of the weekday() is defined in functions.js.
10: Tests for weekday() are passing.

Get a snippet from text

Write a function snippet(string, maxlength) that shortens the string given to the maxlength and adds the ellipsis character ("…") to the end of string, and then returns the shortened string. If the string is shorter than the maxlength, just return the string unmodified.

Example:

snippet("For the following exercises,", 10) // => "For the fo…"
snippet("Hello, world!", 20) // => "Hello, world!"

Requirements

10: A test using expected/valid inputs for the snippet() function is written in tests.js.
10: A test using unexpected/invalid inputs for the snippet() function is written in tests.js.
30: Correct implementation of the snippet() is defined in functions.js.
10: Tests for snippet() are passing.

Number of properties

Write a function numProps(obj) that returns the number of properties an object has. Ignore symbolic properties and count only the "own properties" (not inherited) of the object.

Example:

let friend = {
  name: 'Dominique',
  age: 30,
  phone: '555-555-5555'
}

numProps(friend) // => 3
numProps({}) // => 0

Requirements

10: A test using expected/valid inputs for the numProps() function is written in tests.js.
10: A test using unexpected/invalid inputs for the numProps() function is written in tests.js.
30: Correct implementation of the numProps() is defined in functions.js.
10: Tests for numProps() are passing.

Filter between

Write a function filterBetween(array, min, max) that takes an array of numbers, a min value, and a max value. It returns a new array containing only the elements that are greater than or equal to min and less than or equal to max.

Example:

let arr = [1, 2, 3, 4, 5, 6, 7]

filterBetween(arr, 3, 6) // => [3, 4, 5, 6]
filterBetween(arr, 5, 10) // => [5, 6, 7]

Requirements

10: A test using expected/valid inputs for the filterBetween() function is written in tests.js.
10: A test using unexpected/invalid inputs for the filterBetween() function is written in tests.js.
30: Correct implementation of the filterBetween() is defined in functions.js.
10: Tests for filterBetween() are passing.

Part 2: Extract data from JSON file

Write a Node.js script to search for data from a JSON file.

Use the clients.json file provided representing a database of company contacts. Download the file to your part-2/ folder.

Then write two scripts that can be run using the node command.

searchByName.js takes one string argument (let's call it name), finds all the clients from clients.json who have a rep_name that starts with the name string, and prints the id and rep_name of each matching client.
searchByState.js takes one string argument (let's call it the state), finds all the clients from clients.json who have a state that exactly matches the state, and prints the id, rep_name, company, city, and state of each matching client.

Your searches should not be case-sensitive: i.e. a search for "Bob" is the same as a search for "bob".

Example: searchByName.js

$ node searchByName.js Ad
Finding clients with name "Ad"...

[{
  "id": 7,
  "rep_name": "Adena Rymmer"
},
{
  "id": 56,
  "rep_name": "Adolf Licas"
},
{
  "id": 75,
  "rep_name": "Adamo Maria"
}]

Example: searchByState.js

$ node searchByState.js Maryland
Finding clients in state "Maryland"...

[{
  "id": 25,
  "rep_name": "Axe McMillan",
  "company": "Davis, Reilly and Rolfson",
  "city": "Annapolis",
  "state": "Maryland"
},
{
  "id": 98,
  "rep_name": "Urbanus Dengate",
  "company": "Barton, Lubowitz and Thiel",
  "city": "Baltimore",
  "state": "Maryland"
}]

Requirements

40: searchByName.js script prints the client id and rep_name for all clients whose rep_name starts with the provided name argument.
40: searchByState.js script prints the client id, rep_name, company, city, and state that for all clients whose state matches the provided state argument.

Part 3: HTML layout for grocery store

Write the HTML & CSS to layout a page for an online grocery store.

You only need to write HTML & CSS. No JavaScript or web server is required.

Design a layout to match the following wireframe:

Requirements

Part 4: Quiz time!

Copy the questions below into a file part-4/quiz.md. Then, write your answer to each question directly below it.

The quiz is worth 50 points in total.

Reminder: you can use the internet to help you answer these questions :)

When you run a command in the terminal, where does BASH look for that command?
On a UNIX computer, how do you stop a running process?
What packages do you have installed via homebrew?
On a UNIX computer, how do you find the process id of a running process?
In a terminal, what does control-c do?
In a terminal, what does control-a do?
In a terminal, what does control-e do?
What keyboard shortcut do you use to split the screen in your editor?
What keyboard shortcut do you use to split the screen in your terminal?
When a terminal command completes, how can you tell if it was successful or not?
What does your ~/.gitconfig have in it? (paste the whole file here)
What is the difference between a relative and absolute path?

Lets say you have the following file structure

~
└── Projects
    ├── pinterest-for-dogs
    │   ├── README.md
    │   └── package.json
    └── linkedin-for-dancers
        ├── README.md
        └── package.json

And you were in the linkedin-for-dancers folder. What command would you use to change folders to the pinterest-for-dogs folder?

What keyboard shortcut do you use, in your editor, when you want to open a specific file?
What files or folders do you want all git repositories to ignore?
What is the main difference between == and === in JavaScript?

d2rd/lg-sorting-challenge

Phase 2 Interview Challenge

General Requirements

Part 1: Write tests and solutions for these functions

Show a weekday

Requirements

Get a snippet from text

Requirements

Number of properties

Requirements

Filter between

Requirements

Part 2: Extract data from JSON file

Requirements

Part 3: HTML layout for grocery store

Requirements

Part 4: Quiz time!