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import { useEffect, useState } from 'react'
import { API, graphqlOperation } from 'aws-amplify'

const ListTalks = `
  query {
    listTalks {
      items {
        name
        description
        presenter {

vigosan

# Convert .wav to .flac
for i in *.wav; do ffmpeg -i "$i" "$i".flac ; done

# Convert .flac to .mp3 (lossless)
for f in *.flac; do ffmpeg -i "$f" -aq 1 "${f%flac}mp3"; done

# Convert .flac to .mp3, compress to ~ 120k
for f in *.flac; do ffmpeg -i "$f" -aq 5 "${f%flac}mp3"; done

# Convert .flac to mp3, compress to ~ 128k

vigosan

      PASSWORD_VALIDATOR = /(      # Start of group
        (?:                        # Start of nonmatching group, 4 possible solutions
          (?=.*[a-z])              # Must contain one lowercase character
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...
          (?=.*\d)                 # Must contain one digit from 0-9
          (?=.*[A-Z])              # Must contain one uppercase character
          (?=.*\W)                 # Must contain one non-word character or symbol
        |                          # or...

vigosan

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "[email protected]"

vigosan

Tabs and Windows

Function	Shortcut
Previous Tab	⌘+ Left Arrow
Next Tab	⌘+ Right Arrow
Go to Tab	⌘ + Number
Go to Window	⌘ + Option + Number
Go to Split Pane by Direction	⌘ + Option + Arrow
Go to Split Pane by Order of Use	⌘ + ] , ⌘ + [

vigosan

Lambda: standard

# Creating a lambda
l = lambda { |name| "Hi #{name}!" }

# Executing the lambda
l.call("foo") # => Hi foo!

vigosan

/**
 * @providesModule PatientList
 */
import NavigationBar from 'react-native-navbar';
import NavigationButtons from 'NavigationButtons';
import React, { ListView, Navigator, StyleSheet, Text, TextInput, TouchableHighlight, View } from 'react-native';
import { connect } from 'react-redux/native'

@connect(state => ({
  patients: state.patients

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// In v2/3 you did this:
import ReactDOM from 'react-dom'
import { Router, browserHistory, Route } from 'react-router'

ReactDOM.render(
  <Router>
    <Route path="/about" component={About}/>
    <Route path="/:username" component={User}/>
  </Router>
)

vigosan

# Remove old docker containers
docker rm $(docker ps --no-trunc -aq)

# Remove unreferenced images
docker images | grep "<none>" | awk '{print $3}' | xargs docker rmi


#OR

#alias dockercleancontainers="docker ps -a -notrunc| grep 'Exit' | awk '{print \$1}' | xargs -L 1 -r docker rm"

vigosan

The Ultimate Unit Testing Cheat-sheet

For Mocha, Chai and Sinon

using mocha/chai/sinon for node.js unit-tests? check out my utility: mocha-stirrer to easily reuse test components and mock require dependencies

---

• Sinon Chai
• Chai
• Sinon
• Mocha