Dave Furfero furf

## 0-Callbacks.ts
export type Callback<T> = (value: T) => void;
export type Unsubscribe = () => void;

export default class Callbacks<T> {
  private callbacks = new Set<Callback<T>>();

  subscribe(callback: Callback<T>): Unsubscribe {
    this.callbacks.add(callback);
    return () => this.unsubscribe(callback);
  }

## setTimeoutWithThreshold.ts
type Timestamp = number;
type Callback = (error: Error | null, timestamp: Timestamp) => void;

/**
 * The default number of milliseconds beyond the expected time of execution to
 * wait before assuming failure.
 */
const THRESHOLD = 10000;

/**

## timer.js
const Events = new Map();

function startEvent() {
  return {
    start: Date.now(),
    end: null,
  };
}

function endEvent(event) {

## lazy.js
function reversebinary (n) {
  return parseInt(n.toString(2).split('').reverse().join(''), 2);
}

## index.js
// Found at https://www.glassdoor.com/Interview/Reddit-Senior-Software-Engineer-Interview-Questions-EI_IE796358.0,6_KO7,31.htm

// # a list of strings.Each string is a management / report relationship.
// #
// # EXAMPLE INPUT:
// #
// #[
//   # 'B,E,F',
//   # 'A,B,C,D',
//   # 'D,G,I',

## readme.txt
1. Create a bookmark with the code snippet as the URL.
2. Add it to your bookmarks bar.
3. On any FB page, click the bookmarklet to activate. (Your friends page is a good place to start!)

Now, when you move your cursor over names and icons a remove button should appear. Click the button, wait a second and that friend is no longer yours.

## normalizeIndex.js
function normalizeIndex (index, length) {
  return (length + (index % length)) % length;
}

## rot13.js
function reduceRot13Cipher(map, c, i, abc) {
  const off = 13;
  const len = abc.length;
  const j = (i + off) % len;
  map[c] = abc[j];
  return map;
}

const rot13 = (() => {
  const abc = 'abcdefghijklmnopqrstuvwxyz';

## bookmarklet.url
javascript:void !function(e,t,n,r,i,s){while(n--&&(i=t[n])>e);s=r.style,s.position="fixed",s.zIndex=-1>>>1,s.top=s.left="50%",s.marginTop=s.marginLeft=i/-2+"px",r.src="http://chart.apis.google.com/chart?cht=qr&chld=H|0&chs="+i+"x"+i+"&chl="+escape(location)}(Math.min(top.innerHeight,top.innerWidth),[100,150,200,250,300,350,400,500],8,document.body.appendChild(new Image))

## 0.reverseList.js
function buildList(values) {
  return values.reduceRight((next, value) => ({ value, next }), null);
}

function getValues(node) {
  const values = [];
  while (node) {
    values.push(node.value);
    node = node.next;
  }
	export type Callback<T> = (value: T) => void;
	export type Unsubscribe = () => void;

	export default class Callbacks<T> {
	private callbacks = new Set<Callback<T>>();

	subscribe(callback: Callback<T>): Unsubscribe {
	this.callbacks.add(callback);
	return () => this.unsubscribe(callback);
	}
	type Timestamp = number;
	type Callback = (error: Error \| null, timestamp: Timestamp) => void;

	/**
	* The default number of milliseconds beyond the expected time of execution to
	* wait before assuming failure.
	*/
	const THRESHOLD = 10000;

	/**
	const Events = new Map();

	function startEvent() {
	return {
	start: Date.now(),
	end: null,
	};
	}

	function endEvent(event) {
	function reversebinary (n) {
	return parseInt(n.toString(2).split('').reverse().join(''), 2);
	}
	// Found at https://www.glassdoor.com/Interview/Reddit-Senior-Software-Engineer-Interview-Questions-EI_IE796358.0,6_KO7,31.htm

	// # a list of strings.Each string is a management / report relationship.
	// #
	// # EXAMPLE INPUT:
	// #
	// #[
	// # 'B,E,F',
	// # 'A,B,C,D',
	// # 'D,G,I',
	1. Create a bookmark with the code snippet as the URL.
	2. Add it to your bookmarks bar.
	3. On any FB page, click the bookmarklet to activate. (Your friends page is a good place to start!)

	Now, when you move your cursor over names and icons a remove button should appear. Click the button, wait a second and that friend is no longer yours.
	function normalizeIndex (index, length) {
	return (length + (index % length)) % length;
	}
	function reduceRot13Cipher(map, c, i, abc) {
	const off = 13;
	const len = abc.length;
	const j = (i + off) % len;
	map[c] = abc[j];
	return map;
	}

	const rot13 = (() => {
	const abc = 'abcdefghijklmnopqrstuvwxyz';
	function buildList(values) {
	return values.reduceRight((next, value) => ({ value, next }), null);
	}

	function getValues(node) {
	const values = [];
	while (node) {
	values.push(node.value);
	node = node.next;
	}