hwclass

import moment from 'moment'

class Timestamp {
    private timestamp: string;
    private readonly format = 'YYY-MM-DD HH:mm:ss'

    private constructor(timestamp: string) {
        this.timestamp = timestamp
    }

hwclass

import uuidv4 from 'uuid/v4';

class OrderId {

  private id: string;

  private constructor(id: string) {
    this.id = id;
  }

hwclass

Sketch for Testing Purposes
  First State
    go to second step -> Second State
  Second State
    go to third step -> Third State
  Third State
    go back to second step -> Second State
    go back to first step -> First State

hwclass

Blacklane for Business

Semi-Fragile Transition Period (for Business Client-side Codebase)

Update 1: Choosing a client-side framework/library for managing views 👏

Problem:

• The code is buggy 🐛
• The code is open for having problems after every release
• The same codebase occurs side-effects for each functionality as B2C and B4B ♻️

hwclass

[
  { "id": 118748738, "playTime": 12002,   "auto": false },
  { "id": 118805291, "playTime": 17307,   "auto": false },
  { "id": 118801891, "playTime": 15466,   "auto": false },
  { "id": 118793510, "playTime": 5971,    "auto": true  },
  { "id": 118793313, "playTime": 5865,    "auto": false },
  { "id": 118793313, "playTime": 2302,    "auto": false },
  { "id": 118793510, "playTime": 6578,    "auto": false },
  { "id": 118764182, "playTime": 5726,    "auto": false },
  { "id": 118793510, "playTime": 6557,    "auto": false },

hwclass

Q: How many ways are there to make an AJAX call in Javascipt?
const url = 'http...'
const response = await fetch(url).then(response => response.toJSON())
                                 .then(response => response.data)
                                 
Q: How can we write a method like the following:

sum(2)(4)
// returns 6

hwclass

/**
 * Retrieves the devices matching the kind property with the inputKind argument
 * @param  {String} inputKind The type of the input like 'videoinput'
 * @param  {MediaDeviceInfo} device    The device instance
 * @return {MediaDeviceInfo}           The matching media device
 */
const getDeviceWith = ({ inputKind, device }) => {
  return (device.kind === inputKind) && device
}

hwclass

ssh-keygen -t rsa -b 4096 -C "your_email@example.com"

Enter a file in which to save the key (/Users/you/.ssh/id_rsa): [Press enter]

Enter passphrase (empty for no passphrase): [Type a passphrase]
Enter same passphrase again: [Type passphrase again]

pbcopy < ~/.ssh/id_rsa.pub

Go to the Github profile and update the RSA key there by adding a new name for it

hwclass

import React from 'react'

export const Header = () => <div>This is header component</div>

hwclass

* sudo chown -R "$USER":admin /Library/Caches/Homebrew
http://stackoverflow.com/questions/8253362/etc-apt-sources-list-e212-cant-open-file-for-writing

* NerdTREE
https://github.com/vim-scripts/The-NERD-tree

* apt-vim
https://github.com/egalpin/apt-vim#install

* Vim color scheme