audrow

Free Code Camp React Tutorial

• React lets you compose your UI from many separate, isolated compontents, which makes building and maintenence easier
• Syntax
  • Valid JSX must be inside of a single element
  • JSX looks like HTML with Javascript in curly braces
    • Valid comments are structured as follows: {/* my comment */}
    • class in html becomes className
    • Use camel case for naming convention, like onClick and onChange
    • Every tag must be self-closing (<br />) or closed (<div> </div>), but it cannot be left open (<br> must be <br/>)
• Functions must begin with a capital letter, e.g., DemoComponent

audrow

Deno Web Development by Alexandre Portela Notes

• Architecture
  • Create a top level index.ts file for entry point
  • Create a top level deps.ts file for dependencies and use this file to generate a lock file
  • Every data object has its own folder
    • repository folder for in memory or database
    • controller.ts for main operations
    • index.ts for export

      export type MyType = ...
      

audrow

Deep Work by Cal Newport

• Schedule your whole day, every 30 minutes
• How deep of a task? --> proxy: How long for a college graduate to learn this?
• Bosses typically like 30-40% shallow work
• Consider creating sender emails, such as interesting@
• To speed up emails, say the whole process in the email
• Fixed schedule planning - e.g., only work between 9:30am-5:30pm

audrow

Teleprompter

• 2 mirror version: https://www.proprompter.com/teleprompters/proprompter-desktop/
• Get glass: https://telepromptermirror.com/
  • DIY + parts: https://telepromptermirror.com/how-to-make-a-teleprompter/
    • ~300 in Amazon
  • Buy kit: https://telepromptermirror.com/presidential-teleprompter/
  • Get a free sample of 6”x6”
• Close on Amazon:

audrow

Debugging RMW Errors

• ROS 2 Topic Bad QoS settings
  • 2021-12-20
• Unknown Windows Error
  • 2022-01-06

ROS 2 Topic Bad QoS settings

• Issue running CI: ros2/rmw#315
• Failed test in CI: https://ci.ros2.org/job/ci_linux/15673/testReport/junit/ros2topic.ros2topic.test/test_echo_pub/test_echo_pub/

audrow

New Ubuntu System Setup

• Steps
• Optional
• For Open Robotics

Steps

audrow

README

My ROS 2 and Gazebo Docker setup. This can be extended or used an example for other Docker containers that want to use graphics and have persistent volumes.

Features

• Run Gazebo and ROS 2 in a Docker container
• Persistent workspace
• Graphics support

audrow

set $mod Mod1

# Appearance
font pango:monospace 8

# System execs
exec --no-startup-id xss-lock --transfer-sleep-lock -- i3lock --nofork
exec --no-startup-id nm-applet

# Use pactl to adjust volume in PulseAudio.

audrow

#!/bin/bash
if [ -z ${1+x} ];
then
      echo "Exiting - Please enter a package"
      exit 1
fi

if [ -z ${2+x} ];
then
	MODE="select";

audrow

" vim: foldmethod=marker

" Setup instructions
" ------------------
" 1. Setup Vundle
"   ```
"   git clone https://github.com/VundleVim/Vundle.vim.git ~/.vim/bundle/Vundle.vim
"   ```
" 2. Copy the contents of this file into `~/.vimrc`
" 3. Install the plugins with `vim +PluginInstall +qall`