SakoMe

//SET UP

const users = [{
  id: 1,
  name: 'Bob',
  schoolId: 101
}, {
  id: 2,
  name: 'Jane',
  schoolId: 999

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// Functional JS to flatten an array...

const flatten = (array) => {
  return array.reduce((flat, toFlatten) => {
    return flat.concat(Array.isArray(toFlatten) ? flatten(toFlatten) : toFlatten);
  }, []);
}

console.log(flatten([[1,2,[3]],4])); 

SakoMe

'use strict';

/**
 * Shape class.
 *
 * @constructor
 * @param {String} id - The id.
 * @param {Number} x  - The x coordinate.
 * @param {Number} y  - The y coordinate.
 */

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function reverseString(str) {
  return str.split('').reverse().join('')
}

console.log(reverseString('Hello'))

// Recursion

function reverseString(str) {
  return (str === '') ? '' : reverseString(str.substr(1)) + str.charAt(0);

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// Basic Recursion

const countDownFrom = (num) => {
    if (num === 0) return
    console.log(num)
    countDownFrom(num - 1)
}

countDownFrom(10)

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function LinkedList() {
  this.head = null;
}

LinkedList.prototype.isEmpty = function() {
  return this.head === null;
};

LinkedList.prototype.size = function() {
  var current = this.head;

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var _ = {};


/*********IDENTITY**********/
_.identity = function(val) {
    return val;
};

/*********FIRST**********/
_.first = function(array, n) {

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/**
|--------------------------------------------------
| CLASSES
|--------------------------------------------------
*/

class Point {
  constructor(x, y) {
    this.x = x;
    this.y = y;

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Object.equals = (x, y) => {
  if (x === y) return true;
  if (!(x instanceof Object) || !(y instanceof Object)) return false;
  if (x.constructor !== y.constructor) return false;

  for (let p in x) {
    if (!x.hasOwnProperty(p)) continue;
    if (!y.hasOwnProperty(p)) return false;
    if (x[p] === y[p]) continue;
    if (typeof x[p] !== 'object') return false;