schneidmaster

Under the hood, adding a string to an array invokes type coercion -- the Array's toString() method is called, which in turn calls join()

join() is specified not to check for key presence, and returns the empty string if the value is undefined

https://www.ecma-international.org/ecma-262/6.0/#sec-array.prototype.join

> Array(3).join(',')

schneidmaster

// Typescript definitions for React hooks
// Take with a grain of salt; these are a first attempt and I've only actually
// used a few so far :)

import { Context, RefObject } from 'react';

declare module 'react' {
  export function useState<T>(initialValue: T): [T, (newState: T) => void];
  export function useEffect(effect: Function, inputs?: Array<any>): void;
  export function useMutationEffect(effect: Function, inputs?: Array<any>): void;

schneidmaster

// Basic example of useState.

import React, { useState } from 'react';

export default function Greeting(props) {
  const [name, setName] = useState('Mary');

  function handleNameChange(e) {
    setName(e.target.value);
  }

schneidmaster

ITEM_AGED_BRIE = "Aged Brie".freeze
ITEM_BACKSTAGE_PASS = "Backstage passes to a TAFKAL80ETC concert".freeze
ITEM_SULFURAS = "Sulfuras, Hand of Ragnaros".freeze

class GildedRose
  def initialize(items)
    @items = items
  end

  def update_quality()

schneidmaster

# Problem: https://twitter.com/AtticusGF/status/935977894651691008
#
# Stage 1 has 7 disks
# Stage 2 has 16 disks (or 7 + 3^2)
# Stage 3 has 41 disks (or 16 + 5^2)
# Stage 4 has 90 disks (or 41 + 7^2)
# so for each stage, add the incrementor squared and then
# increase the incrementor by 2
# Print off every million to avoid wasting too much
# time with terminal output

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erlang 18.0
elixir 1.3.2

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import React            from 'react';
import classNames       from 'classnames';
import { Input }        from 'react-bootstrap';
import MaskedInputField from 'react-maskedinput';

export default class MaskedInput extends Input {
  renderInput() {
    const className = this.isCheckboxOrRadio() || this.isFile() ? '' : 'form-control';
    return <MaskedInputField {...this.props} className={classNames(this.props.className, className)} ref="input" key="input" />;
  }

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{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": [
                "s3:ListBucket",
                "s3:GetBucketLocation"
            ],
            "Resource": "arn:aws:s3:::BUCKET_NAME"

schneidmaster

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Net;
using System.IO;
using System.Threading;
using System.Diagnostics;

schneidmaster

Verifying I am +schneidmaster on my passcard. https://onename.com/schneidmaster