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/** @format */

/**
 * Функция отчищает JPEG-картинку от метаданных
 *
 * @param {ArrayBuffer} buf буфер с изображением
 * @returns {Blob|null}
 */
function clearJpegMetadata(buf) {
  if (!(buf instanceof ArrayBuffer)) {

zazaulola

function createWorker(callable) {
  const code = `onmessage=${callable.toString()}`;
  const blob = new Blob([code], { type: 'text/javascript' });
  const url = URL.createObjectURL(blob);
  const worker = new Worker(url);
  URL.revokeObjectURL(url);
  return worker;
}

zazaulola

/** @format */

/**
 * 
 * The principle of the algorithm is very simple.
 * 
 * The module exports three functions:
 * 
 * getTask()
 *    The first function does not need any arguments.

zazaulola

function cp1251ToUtf8(buf){
  if(buf instanceof ArrayBuffer) buf = new Uint8Array(buf);
  if(!Array.isArray(buf)) buf = [...buf];
  const map = new Map([
	  [128,1026], [129,1027], [130,8218], [131,1107], 
	  [132,8222], [133,8230], [134,8224], [135,8225],
	  [136,8364], [137,8240], [138,1033], [139,8249], 
	  [140,1034], [141,1036], [142,1035], [143,1039], 
	  [144,1106], [145,8216], [146,8217], [147,8220], 

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function koi8rToUtf8 ( buf ) {
  if( buf instanceof ArrayBuffer ) {
  	buf = new Uint8Array ( buf );
  }
  if( ! Array.isArray ( buf ) ) {
  	buf = [ ... buf ];
  }
  const map = new Map ( [
	  [0x80,0x2500], [0x81,0x2502], [0x82,0x250C], [0x83,0x2510], 
	  [0x84,0x2514], [0x85,0x2518], [0x86,0x251C], [0x87,0x2524], 

zazaulola

function detab(str) {
  return str.replaceAll(/^\s*|\s*$|(?<=(?:\n(\s*).*?)+)\1/g, "");
}

// Test

    let query = `
      SELECT 
        'table'.*
      FROM

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function geodistance(lat1,lon1,lat2,lon2){
  const R = 6371e3; // in metres
  const φ1 = lat1 * Math.PI/180; // φ, λ in radians
  const φ2 = lat2 * Math.PI/180;
  const Δφ = (lat2-lat1) * Math.PI/180;
  const Δλ = (lon2-lon1) * Math.PI/180;

  const a = Math.sin(Δφ/2) * Math.sin(Δφ/2) +
            Math.cos(φ1) * Math.cos(φ2) *
            Math.sin(Δλ/2) * Math.sin(Δλ/2);

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zazaulola

Object.defineProperties(EventTarget.prototype, {
  on: { value: EventTarget.prototype.addEventListener },
  off: { value: EventTarget.prototype.removeEventListener },
  emit: {
    value: function (eventType, eventData) {
      let event = new Event(eventType);
      if (eventData) {
        Object.assign(event, eventData, { details: eventData });
      }
      this.dispatchEvent(event);

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#!/bin/bash
#                                            __         __
#    ____  ____  _________  ____ ___  ____  / /_  _____/ /_
#   /_  / / __ \/ ___/ __ \/ __ `__ \/ __ \/ __/ / ___/ __ \
#    / /_/ /_/ / /  / /_/ / / / / / / /_/ / /__ (__  ) / / /
#   /___/ .___/_/   \____/_/ /_/ /_/ .___/\__(_)____/_/ /_/
#       /_/                        /_/

PS1='\u@\h \W\$ '