k-vosswinkel

Clock Minute Adder

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Interviewer Prompt

Given:

• a time in string format HH:MM
• a number of minutes

Return:

• The time given those minutes added to the base time

k-vosswinkel

// You're playing a game in which you're given the number of players.
// Each turn, the player removes the person next to them.
// Play continues until there is only one player left.

// EXAMPLE: eenyMeeny(5) =>
// 1 2 3 4 5 <= round 1: player 1 (remove player 2)
// 1 3 4 5 <= round 2: player 3 (remove player 4)
// 1 3 5 <= round 3: player 5 (remove player 1)
// 3 5 <= round 4: player 3 (remove player 5)
// Player 3 is the winner!

k-vosswinkel

Slides

Prompt

Implement an immutable binary search tree class. The class constructor should accept (at least) a single argument which will represent the value for its root node. Each instance should have two methods: insert, which takes a numerical value and returns a new binary search tree containing that value, and contains, which takes a numerical value and returns true or false based on whether the tree contains it.

Insert should not mutate the existing binary search tree. That is:

const bstA = new ImmutableBST(5);

k-vosswinkel

const returnsAPromise = (string) => (
  new Promise((resolve, reject) => {
    if (typeof string !== 'string') reject('Not a string!');
    resolve(`String is a resolved promise now: ${string}`);
  })
);

const myString = "Kait's string";
let isOurPromiseFinished = false;

k-vosswinkel

const queryADatabase = function(mysql, query) {
  return new Promise((resolve, reject) => {
    mysql.query(query, (err, rows) => {
      if (err) reject(err);
      else resolve(rows);
    });
  })
};

/* What we're doing here is creating a promise that resolves or rejects 

k-vosswinkel

/* eslint-disable no-unused-vars */

const rotater = str => {
  let flip = false;
  let rotatedStr;

  return function (steps) {
    if (steps === str.length) {
      flip = !flip;
    }