alekstar79

/** "Lorem ipsum" style text. */

/**
* Produces a random number
* @return {Number} Random number
*/
export function gauss()
{
	return (Math.random() * 2 - 1) + (Math.random() * 2 - 1) + (Math.random() * 2 - 1)
}

alekstar79

const noop = () => {}

export class Cancelable extends Promise
{
  constructor(executor = noop)
  {
    super((resolve, reject) => {
      executor(v => {

        /**

alekstar79

/**
 * @see https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/queueMicrotask
 */
export const queueMicrotask = (function() {
  const queueMicrotask = typeof window !== 'undefined'
    ? window.queueMicrotask
    : undefined

  return queueMicrotask || (cb => {
    Promise.resolve().then(cb).catch(e => setTimeout(() => { throw e }))

alekstar79

Object.defineProperty(Array.prototype, 'binarySearch', {
  value(target, comparator) {
    let l = 0,
      h = this.length - 1,
      m, comparison

    /* default comparison method if one was not provided */
    comparator = comparator || function(a, b) {
      return (a < b ? -1 : (a > b ? 1 : 0))
    }

alekstar79

export class AsyncArray extends Array
{
  [Symbol.asyncIterator]()
  {
    let i = 0

    return {
      next: () => new Promise(resolve => {
        setTimeout(() => resolve({ value: this[i], done: i++ === this.length }))
      })

alekstar79

export function str2ab(str)
{
  let buf = new ArrayBuffer(str.length * 2) // 2 bytes for each char
  let bufView = new Uint16Array(buf)

  for (let i = 0, strLen = str.length; i < strLen; i++) {
    bufView[i] = str.charCodeAt(i)
  }

  return buf

alekstar79

export function ab2str(buf)
{
  return String.fromCharCode.apply(null, new Uint16Array(buf))
}

alekstar79

function convertToWebp(string $src, int $quality = 100): string
{
    $dir = pathinfo($src, PATHINFO_DIRNAME);
    $name = pathinfo($src, PATHINFO_FILENAME);
    $ext = pathinfo($src, PATHINFO_EXTENSION);

    $dest = "$dir/{$name}_$ext.webp";
    $is_alpha = false;

    switch (mime_content_type($src)) {

alekstar79

// Immutable Shuffle
const shuffleImmutable = (arr) => arr.slice().sort(() => Math.random() - 0.5)

// Random number in range
const randomInRange = (from, to) => Math.floor(from + Math.random() * (to - from + 1))

// Array with unique items
const uniqueItems = (arr) => [...new Set(arr)]

// Uppercase firs letter

alekstar79

Installation

pip3 install --user pyqt5  
sudo apt-get install python3-pyqt5  
sudo apt-get install pyqt5-dev-tools
sudo apt-get install qttools5-dev-tools

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Configuring to run from terminal