MichalZalecki

import React, { PropTypes, Component } from "react";
import ReactDOM from "react-dom";
import { makeDOMDriver } from "@cycle/dom";
import { run } from "@cycle/xstream-run";

class CycleRun extends Component {
  static propTypes = {
    main: PropTypes.func.isRequired,
    drivers: PropTypes.object,
  };

MichalZalecki

export default function validateType(accepts) {
  const typeExps = accepts.split(/ *, */).map(type => new RegExp(type));

  return file => Boolean(typeExps.find(exp => exp.test(file.type)));
}

// function onChange({ target }) {
//  const acceptedFiles = target.files.filter(validateType("images/*, application/pdf"));
// }

MichalZalecki

function toPairs(obj) {
  return Object.entries(obj); // ES2017
}

describe("toPairs", () => {
  it("transforms object to key-value pairs", () => {
    expect(toPairs({ foo: "bar", foz: "baz" })).toEqual([
      ["foo", "bar"],
      ["foz", "baz"]
    ]);

MichalZalecki

const SimpleToken = artifacts.require("./SimpleToken.sol");
const PresaleCrowdsale = artifacts.require("./02-presale-multiple-rounds/PresaleCrowdsale.sol");

module.exports = (deployer, network, [owner]) => {
  return deployer
    .then(() => deployer.deploy(SimpleToken, "Tooploox", "TPX", 18, 21000000))
    .then(() => deployer.deploy(PresaleCrowdsale, 10000, owner, SimpleToken.address, owner))
    .then(() => SimpleToken.deployed())
    .then(token => token.increaseApproval(PresaleCrowdsale.address, 1000000 * (10 ** 18)));
};

MichalZalecki

import { performance } from "perf_hooks";
import { SHA256 as sha256 } from "crypto-js";

function calculateTarget(difficulty: number): number {
  return Math.ceil(2 ** 256 / difficulty);
}

function padLeft(str: string, to: number, chr: string): string {
  return str.length < to ? padLeft(chr + str, to, chr) : str;
}

MichalZalecki

pragma solidity 0.4.24;

import "github.com/OpenZeppelin/openzeppelin-solidity/contracts/math/SafeMath.sol";


/// @title Scalable Reward Distribution
/// @dev ref. http://batog.info/papers/scalable-reward-distribution.pdf
contract ScalableRewardDistribution {
  using SafeMath for uint256;

MichalZalecki

import Web3 from "web3";

const web3 = new Web3(Web3.givenProvider);
const web3Events = new Web3(new Web3.providers.WebsocketProvider("wss://mainnet.infura.io/ws"));

const Contract = new web3.eth.Contract(ABI, ADDRESS);
const ContractEvents = new web3Events.eth.Contract(ABI, ADDRESS);

MichalZalecki

// STOP!
// Are you thinking of using this in an app? Don't!
// This script is designed for interactive use in the go-ethereum console.
// For use in an app, consider one of these fine libraries:
//  - https://www.npmjs.com/package/ethjs-ens
//  - https://www.npmjs.com/package/ethereum-ens

function namehash(name) {
    var node = '0x0000000000000000000000000000000000000000000000000000000000000000';
    if (name !== '') {

MichalZalecki

Google Docs Viewer

Only files under 25 MB can be previewed with the Google Drive viewer.

Google Drive viewer helps you preview over 16 different file types, listed below:

• Image files (.JPEG, .PNG, .GIF, .TIFF, .BMP)
• Video files (WebM, .MPEG4, .3GPP, .MOV, .AVI, .MPEGPS, .WMV, .FLV)
• Text files (.TXT)
• Markup/Code (.CSS, .HTML, .PHP, .C, .CPP, .H, .HPP, .JS)
• Microsoft Word (.DOC and .DOCX)

MichalZalecki

# /config/environments/development.rb

# Gmail configuration
config.action_mailer.raise_delivery_errors = true
config.action_mailer.delivery_method = :smtp
config.action_mailer.smtp_settings = {
  address:              'smtp.gmail.com',
  port:                 587,
  domain:               'example.com',
  user_name:            ENV['EMAIL_USER'],