Xetera

Keybase proof

I hereby claim:

• I am xetera on github.
• I am xetera (https://keybase.io/xetera) on keybase.
• I have a public key whose fingerprint is DE0C C5B3 7058 805B 8DD8 E306 7FB1 9FBF D8E5 BBED

To claim this, I am signing this object:

Xetera

makePattern :: [(a -> a)] -> a -> [a]
makePattern funcs seed = scanl (\a f -> f a) seed (cycle funcs)

-- makePattern [(*3), (+1)] 1
-- [1,3,4,12,13,39]

Xetera

{-
  Using Optimal Stopping for finding the highest number in a list
  1. Generate an integer list of N size
  2. Reveal the numbers of the first N/e elements
  3. Keep revealing numbers until you find one bigger than the biggest revealed number
  4. The chances of the first matching number being the highest number in the list will consistently be 1/e
-}

-- Games played: 1000
-- Games Won: 358

Xetera

const chunk = (array, num) => array.reduce((array, current) => {
  const last = array[array.length - 1];
  const init = array.slice(0, -1);
  if (!last) {
    return [...init, [current]]
  }
  if (last.length >= num) {
    return [...array, [current]]
  }
  return [...init, [...last, current]];

Xetera

import { CommandOptions, Command } from "discord-akairo";

interface CreateCommand extends CommandOptions {
  /**
   * The exec function can be called in 3 different ways, however,
   * Typescript doesn't seem to be able to support explicit `this`
   * coming from external types, union types or overloads. In order to
   * specify the `this` type the signature MUST be directly assigned 
   * in the interface
   */

Xetera

const parallelMap = (arr, fn, max) => {
    const out = [];
    const initial = [...Array(max)];
    const fired = initial.map(() => Promise.resolve().then(async function cb() {
        if (!arr.length) return
        
        const next = arr.shift();
        out.push(await fn(next));
        return cb();
    }));

Xetera

/**
 * (*) Due to the eager nature of promises, `items` must be an
 * array of promise returning functions and not an array of promises
 */
const batchProcess = (count, items) => {
  const chunked = R.splitEvery(count, items);
  
  const process = async ([head, ...tail]) => {
    const promises = head.map(func => func());
     const results = await Promise.all(promises);

Xetera

const partition = (func, array) => array.reduce(([pass, nopass], item) => {
  if (func(item)) {
    return [[...pass, item], nopass]
  }
  return [pass, [...nopass, item]]
}, [[], []]);


const glob = async (path, regex) => {
  const dirContent = await fsp.readdir(path, {withFileTypes: true})

Xetera

fromEven num = num `div` 2
fromOdd = (+1) . (*3)

collatz :: Int -> [Int]
collatz num 
  | num == 1 = [1]
  | even num = next fromEven
  | odd num = next fromOdd
  where next func = num : (collatz $ func num)

Xetera

/* 1. press ctrl + shift + i 
 * 2. go to "Console" and find any log that starts with "###", click on its link
 * 3. pretty print the script
 * 4. search for "player.x = " 
 * 5. put a breakpoint on the same line and move your character with your mouse (game is paused now)
 * 6. paste in the script
 * 7. remove breakpoint, continue game
 * 8. dab on the haters but enjoy knowing the fact you're so salty in a Facebook game that you search for hacks
 */