azasypkin

const map = new Map([[1, true], [2, true], [3, false], [4, false], [5, true]]);

const processedMap = Array.from(map.entries())
  .map(([key, value]) => [value, key])
  .reduce((acc, [key, value]) => acc.set(key, value + (acc.get(key) || 0)), new Map());

console.log('---------- Original Map ----------');
for (const [key, value] of map.entries()) {
  console.log(`key: ${key}, value: ${value}`);
}

azasypkin

Setup RaspberryPi:
mkdir -p /etc/ppp/scripts

cat > /etc/ppp/scripts/ppplogin <<EOF
#!/bin/sh

# ppplogin - script to fire up pppd on login

# Disable other users to write to the tty.
mesg n

azasypkin

/* exported WebSocketUtils */

(function(exports) {
  'use strict';

  exports.WebSocketUtils = {
    /**
     * Mask every data element with the mask (WebSocket specific algorithm).
     * @param {Array} mask Mask array.
     * @param {Array} array Data array to mask.