JO3-W3B-D3V

import React, { useState, useEffect, useReducer, useContext, useRef, createContext } from "react";

// Hook definition.
export const useContextAndReducer = (reducer, context) => {
  const ctx = useContext(context);
  const [state, dispatch] = useReducer(reducer, ctx.state);
  const { setState } = ctx;

  // Update the context when the state changes from the reducer.
  useEffect(() => {

JO3-W3B-D3V

/**
 * This is just an example of how concise the FizzBuzz solution can be.
 * This may not be the most efficient or elegant solution in the world, but eh, it's a bit of fun! :) 
 */

// Just off load the logic to a method for the sake of ease.
// It could be a one line solution, but it's a little harder to read that way.
const print = i => (i % 3 == 0 ? 'Fizz' : '') + (i % 5 == 0 ? 'Buzz'  : '') || i;

// Now to iterate over an array with 100 elments & print the solution.

JO3-W3B-D3V

import { Observable } from 'rxjs';

export class BasicFileInformation {
    public fileName: String;
    public fileSize: Number;
    public fileData: String | ArrayBuffer;
    public fileMimeType: String;

    constructor(fileName: String, fileSize: Number, fileData: String | ArrayBuffer, fileMimeType: String) {
        this.fileName = fileName;

JO3-W3B-D3V

var css = Array.from(document.styleSheets).reduce((l, s) => {
	l.push([...s.cssRules].map(c => c.cssText));
	return l;
}, []).map(arr => arr.join()).join();

console.log(css);

JO3-W3B-D3V

// A functional example
return someList.stream()
  .map(String::toLowerCase)
  .anyMatch(x::contains);

// A more traditional example
for (String str : someList) {
  if (x.contains(str.toLowerCase())){
    return true;
  }

JO3-W3B-D3V

// Just a short hand function to assist the push function, it simply 
// turns a string into an array, and due to surrogate pairs, 
// this solution removes all instances of null, then it sorts the array, 
// and finally returns it as a string.
const sort = s => [...s].filter(x => x != null).sort().join('');


// A function that will assist the anagrams function, it will 
// essentially state whether or not to push a string onto the 
// anagrams array or to push null onto the array, there are times