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( async() => {
  const items = 'abcdefghijklmnopqrstuvwxyz'.split('');
  const concurrency = 10;
  
  async function process() {
    return new Promise( r => setTimeout( r, Math.random() * 1000 ) );
  }
  
  async function report({ item, processed, total, done }){ 
    if ( done ) {

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npm i
deno run --unstable --compat --allow-all index.j

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#!/bin/bash
# Install a custom ElasticSearch version - https://www.elastic.co/products/elasticsearch
#
# To run this script in Codeship, add the following
# command to your project's test setup command:
# \curl -sSL https://raw.githubusercontent.com/codeship/scripts/master/packages/elasticsearch.sh | bash -s
#
# Add at least the following environment variables to your project configuration
# (otherwise the defaults below will be used).
# * ELASTICSEARCH_VERSION

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const nextTick = () => Promise.resolve();

class DataLoader {
  
  constructor( batch ) {
    this.batch = batch;
    this.queue = [];
    this.cache = new Map();
  }
  

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10.6.0

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{
  "plugins": [
    "transform-flow-strip-types"
  ]
}

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function CF() {}

CF.P1 = 'somevalue';
CF.P2 = 'somevalue';

var CFp = {
  CFP1: 'somevalue'
};

CF.prototype = CFp;

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// convert an unsigned int to hex string
const toHex = b => ( '00' + b.toString( 16 ) ).slice( -2 );

// return the SHA-1 hash of a given string
// note: crypto.subtle is unavailable on non-HTTPS pages
const sha1 = async str => {
  const msg = new TextEncoder('utf-8').encode( str );
  const buf = await crypto.subtle.digest( 'SHA-1', msg );
  
  return [ ...new Uint8Array( buf ) ].map( toHex ).join('');

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( () => {
  const expect = [ 38, 38, 40, 40, 37, 39, 37, 39, 66, 65 ];
  const pressed = [];

  document.addEventListener( 'keyup', e => {
    pressed.push( e.keyCode );

    for ( let i = 0; i < pressed.length; ++i ) {
      if ( pressed[ i ] !== expect[ i ] ) {
        pressed.length = 0;

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'#ddd'.darker // '#a0a0a0'
'#ddd'.lighter // '#f0f0f0'
'#ddd'.darker.darker // '#808080'