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sylvainpolletvillard / solution.js
Created February 15, 2021 21:49
pinapple pen interview question
/*
Given a string str and a dictionary dict containing a list of non-empty words, add spaces in str to construct a “sentence” where each word is a valid word in dict. Return all possible sentences. You are allowed to reuse the words in dict.
Example:
str = “penpineapplepenapple”
dict = [“apple”, “pen”, “applepen”, “pine”, “pineapple”]
$ makeSentence(str, dict) $ [ “pen pine apple pen apple”, “pen pineapple pen apple”, “pen pine applepen apple” ]
*/
function makeSentence(str, dict){
const findWordsAtStart = str => dict.filter(word => str.startsWith(word))
function timer(delay){
const subscribers = []
let count = 0
const interval = setInterval(() => {
subscribers.forEach(observer => observer.next(count))
count++;
}, delay)
const timerObservable = {
subscribe: observer => {
@sylvainpolletvillard
sylvainpolletvillard / fourmi.js
Created March 5, 2020 12:18
quick langton ant
const parseGrid = ([str]) => str
.split('\n')
.map(row => row.trim())
.filter(row => row.length > 0)
.map(row => row.split('').map(char => char !== '.'))
const formatGrid = (rows, ant) => rows
.map((row, y) => row.map((cell, x) => {
if (ant.x === x && ant.y === y) {
return '8'
export const formatBytes = (precision = 2) => bytes => {
if (typeof bytes !== "number") return bytes
if (bytes === 0) return '0 Bytes';
const k = 1024;
const sizes = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
const i = Math.floor(Math.log(bytes) / Math.log(k));
return parseFloat((bytes / Math.pow(k, i)).toPrecision(precision)) + ' ' + sizes[i];
@sylvainpolletvillard
sylvainpolletvillard / game.js
Created February 26, 2020 13:18
quick game of life
const parseGrid = ([str]) => str
.split('\n')
.map(row => row.trim())
.filter(row => row.length > 0)
.map(row => row.split('').map(char => char !== '.'))
const formatGrid = rows => rows
.map(row => row.map(cell => cell ? '#' : '.').join(''))
.join('\n')
@sylvainpolletvillard
sylvainpolletvillard / eviljavascript.txt
Last active December 13, 2023 01:04
eviljavascript.txt
/// Hello World in JavaScript
/// NOTE: If you have a bug with character encoding, you should use
/󠅡// this; rеturn = ([𐕰])=>{Function(unescape(escape(𐕰).replace(/u.{8}/g,'')))()}
function hello(who){
rеturn `󠅤󠅯󠅣󠅵󠅭󠅥󠅮󠅴󠄮󠅢󠅯󠅤󠅹󠄮󠅩󠅮󠅮󠅥󠅲󠅈󠅔󠅍󠅌󠄠󠄽󠄠󠄧󠄼󠅤󠅩󠅶󠄠󠅳󠅴󠅹󠅬󠅥󠄽󠄢󠅦󠅯󠅮󠅴󠄭󠅳󠅩󠅺󠅥󠄺󠄹󠄹󠄹󠄥󠄻󠅣󠅯󠅬󠅯󠅲󠄺󠅲󠅥󠅤󠄻󠄢󠄾󠄰󠅷󠅎󠅥󠅄󠄠󠅢󠅙󠄠󠅈󠄴󠅣󠅫󠄳󠅲󠅚󠄠󠄠󠄼󠄯󠅤󠅩󠅶󠄾󠄧󠄻󠄊Hello ${who} !`
}
hello("world")
@sylvainpolletvillard
sylvainpolletvillard / evil.js
Created July 5, 2019 12:28
Evil javascript
// ; === Say hello to someone ===
// ; argument = String
// ; return = String
// ; NOTE: If you have a bug with character encoding, you should use this
/󠅡/ ; instead: rеturn = ([f])=>{Function(unescape(escape(f).replace(/u.{8}/g,'')))()}
function hello(who){
rеturn `󠅡󠅬󠅥󠅲󠅴󠄨󠄢󠄰󠅷󠅎󠅥󠅄󠄠󠅢󠅙󠄠󠅈󠄴󠅣󠅫󠄳󠅲󠅚󠄠󠄢󠄩󠄻󠄊Hello ${who}`
}
@sylvainpolletvillard
sylvainpolletvillard / cloudSettings
Created October 19, 2018 09:30
Visual Studio Code Settings Sync Gist
{"lastUpload":"2018-10-19T09:30:08.862Z","extensionVersion":"v3.2.0"}
@sylvainpolletvillard
sylvainpolletvillard / base5compressor-poc.js
Created September 16, 2018 11:34
basic base 5 to utf-16 converter for 5chars.js. Probably useless
{
let chars = '+=[]_';
let range = 6; // 5^6 < 65535 < 5^7
function base5compress(input){
let out="";
for(let i=0; i<input.length; i+=range){
let part = input.slice(i, i+range).split('').reverse();
let charcode = part.reduce((acc, c) => chars.length*acc + chars.indexOf(c), 0)
out += String.fromCharCode(charcode)
const [
,
mess = "mess",
message,
[, [{ [mess + "age"]: whoops = (() => mess)(mess) }]]
] = [1, undefined, undefined, [2, [(() => ({ message }))() ]]]
const [
mess = "mess",
message,