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class LinkedList {
  constructor() {
    this.head = null;
    this.tail = null;
  }
  
  add(value) {
    const node = { value };
    if (this.tail != null) {
      this.tail.next = node;

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[
  {
    "answer": "pure",
    "choices": ["impure", "pure"],
    "function": "const sums = (a,b) => {return a+b}",
    "question": "Is the following function pure or impure?"
  },
  {
    "answer": "O(b)",
    "choices": ["O(a + b)", "O(ab)", "O(a)", "O(b)"],

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function buildGraph(edges) {
  let graph = Object.create(null);
  function addEdge(from, to) {
    if (graph[from] == null) {
      graph[from] = [to];
    } else {
      graph[from].push(to);
    }
    console.log(from, to);
    console.log(graph[from]); //vs console.log(graph);  why does printing the entire graph here print the completed graph on the second call, even though it shouldn't be fully constructed until the last call?

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'use strict'; // for ES6 in node
/*eslint arrow-body-style: 0*/

const gulp = require('gulp');
const source = require('vinyl-source-stream');
const browserify = require('browserify');
const watchify = require('watchify');
const resolutions = require('browserify-resolutions');
const eslint = require('gulp-eslint');
const path = require('path');

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# Path to your oh-my-zsh installation.
export ZSH=$HOME/.oh-my-zsh

# Set name of the theme to load.
# Look in ~/.oh-my-zsh/themes/
# Optionally, if you set this to "random", it'll load a random theme each
# time that oh-my-zsh is loaded.
ZSH_THEME="robbyrussell"

# Example aliases

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Number 1

What does this print (in Node or Chrome)?

console.log([] * 1)

Number 2

What does this print (in Node or Chrome)?

console.log([''] * 1)

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var async = require('async');

var data = [
  {timeout: 43, text: 'taco bell'},
  {timeout: 26, text: 'twelve'},
  {timeout: 340, text: 'kfC'}
];

var counter = 0;
var iterator = function (item, callback) {

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      Name             Command             State              Ports
-------------------------------------------------------------------------
ec2user_api_1      node server.js     Exit 0             0.0.0.0:8080->80
                                                         80/tcp
ec2user_courses_   node server.js     Exit 0             0.0.0.0:443->443
1                                                        /tcp, 0.0.0.0:80
                                                         ->80/tcp
ec2user_mongo_1    /entrypoint.sh     Exit 0             0.0.0.0:27017->2
                   mongod                                7017/tcp
ec2user_redis_1    /entrypoint.sh     Exit 0             6379/tcp

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var _ = require('highland');
var cheerio = require('cheerio');
var request = require('request');

// request library, but with a node.js style callback - i.e. (err, res)
var req = function (url, cb) {
  request(url, function (err, res, data) {
    cb(err, data);
  });
};

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• Implement bing search results to get an easy win to start off
• Create stub methods for TFIDF and PAGE RANK for a given word
• Create method to kill stop words in a query
• Use stub data to implement query --> ranked documents method
• Combine this with Bing data to get ranked URLs for query
• Implement AJAX frontend with previews