Unit 2: Trivia

Rules

• You'll be sorted into groups of 3 or 4
• Come up with a team name
• There are 5 Categories, each with 5 Questions
• Write your answers on a whiteboard
• After each category teams can wager up to 5 points on a challenge question

The Prize

Knowledge!

Git

What command can you run to see all remote repositories?

How do you exit vim without saving?

What git command let's you see changes since the last commit?

How do you go to and create a new branch?

What does the -u flag represent when pushing?

What command do you need to run to remove a local git repository?

CHALLENGE:

JavaScript

What will this evaluate to?

( !true || !!0 ) || 
  ( !1 && !!!1 ) || 
  ( false || true && false )

What will this evaluate to?

[
  [ 3, 4, 5 ][ 0 ], 
  [ 
    "a", 
    "b", 
    "c", 
    [ "d", "e", "f" ][ 2 ]
  ][ 5 ]
][ 1 ]

The final value of movie is:

var movie = 'Party Girl';

if ( movie.indexOf('P') > 0 ) { movie = movie.split(" ")[0]; }
if ( movie.length > 5 ) { movie = movie.replace(" ", "-"); }
movie.toLowerCase();

What will this evaluate to?

function crazyHoF (input1) {
  return function (input2) {
    input1 += input2;
    return function (input3) {
      return input1 + input3 + input2;
    }
  }
}

crazyHoF(10)(5)(15);

What will this evaluate to?

Object.keys([ 10, 11, 12 ]).reduce(function (prev, curr) {
  return prev * curr;
});

What will this evaluate to?

[ 9, 77, 555, 3333 ].map(function (el) {
  return el.toString().split('').join('-');
}).filter(function (el) {
  return el.indexOf('-') > -1;
}).reduce(function (prev, curr) {
  return [prev, curr].join('-');
});

CHALLENGE:

Node, Express, APIs

What is the type of require? What is the type of module.exports?

Which of the following are RESTful routes:

GET /animals

POST /animals/:id

DELETE /animals/delete

PUT /animals/:id

We have a resource called Animals. What HTTP Verb and path should be used to create a new animal?

If you use AJAX to hit a route on your server, what method on res should you use to respond?

What does REST stand for?

Diagram what happens between the client and the server during a redirect. 

CHALLENGE:

SQL & Promises

Write a SQL statement that will select the id & name from a table called pets.

Imagine we have a table called students with a column called age. Write a SQL statement that will return the oldest student.

What will the following log?

Promise.resolve(false)
.then(result => {
  console.log('Success:', result)
})
.catch(error => {
  console.log('Error:', error)
})

What will the following log?

Promise.all([
  Promise.resolve(true),
  Promise.reject(false)
])
.then(result => {
  console.log(result)
})

Will the id logged be related to a cocktail or a glass?

knex('cocktails')
.join('glasses', 
  'glasses.id', 
  'cocktails.glass_id')
.then(results => {
  console.log(results[0].id)
})

CHALLENGE:

What will happen when this route is hit?

router.get('/languages/:id', (req, res) => {
  let language
  knex('languages').where({ id: req.params.id })
    .then(languages => {
      language = languages[0]
    })
  res.send(language)
})

Auth

What is the difference between Authorization and Authentication

What status code refers to Unauthorized?

What does HttpOnly refer to in regards to cookies?

Should you use fast or slow hashing algorithms? Give an example of each.

When we use cookie-session we have a SESSION_SECRET. What is it used for?

CHALLENGE:

What's the difference between a cryptographic hashing and encryption?

Lightning Talks

What is the Big O Notation for Binary Search?

What was one password manager mentioned in Joshua's Lightning Talk?

Why would you use recursion instead of a regular loop?

What is the key to making the perfect over easy egg?

How much of the world's maple syrup does Canada produce?

A. Over 60%

B. Over 70%

C. Over 80%

D. Over 90%

CHALLENGE:

What was the website where we could hear Vader plus ocean sounds?

Tie Breaker!

Name as many status codes with their associated meanings as possible.

Go!

Name as many native node modules as possible.

Go!