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MacOS Keyboard Shortcuts

These work (almost) universally in every application in MacOS, the only exception is text editors, which usually prefer their own key bindings.

Interestingly, these are all the same shortcuts you can use in the terminal (through readline), and are the standard key bindings for emacs.

• Ctrl + a: go to the beginning of the line
• Ctrl + e: go to the end of the line

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tmux-256color|tmux with 256 colors,
  sitm=\E[3m, ritm=\E[23m,
  smso=\E[7m, rmso=\E[27m,
  use=screen-256color,

zgulde

# see https://apple.stackexchange.com/questions/249307/tic-doesnt-read-from-stdin-and-segfaults-when-adding-terminfo-to-support-italic/249385
# A screen-256color based TERMINFO that adds the escape sequences for italic.
# run to add to term db: tic tmux.terminfo
tmux|tmux terminal multiplexer,
  ritm=\E[23m, rmso=\E[27m, sitm=\E[3m, smso=\E[7m, Ms@,
  use=xterm, use=screen,

tmux-256color|tmux with 256 colors,
  use=xterm-256color, use=tmux,

zgulde

Setting up websockets in production

If you have a spring boot application that is using websockets, and you have a site deployed with the codeup tomcat setup, follow the instructions below:

Nginx Config

Add the following to the nginx config for your site in the location / block and restart nginx

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use test_db;

CREATE TABLE IF NOT EXISTS items (
    id INT UNSIGNED NOT NULL AUTO_INCREMENT,
    item TEXT NOT NULL,
    PRIMARY KEY (id)
);

-- 25
insert into items(item) values

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class SuperClass {
    public SuperClass() {
        System.out.println("Parent constructor!");
    }
}

public class ConstructorTest extends SuperClass {
    private String something;

    public ConstructorTest(String something) {

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while [[ $# -gt 0 ]]; do
    arg=$1; shift
    case $arg in
        -d) domain=$1; shift;;
        --domain=*) domain=${arg#*=};;
        -g) enable_git=true;;
        --git-deployment) enable_git=true;;
        *) echo "Unknown arg: $arg"; exit 1;;
    esac
done

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while [[ $# -gt 0 ]]; do
    arg=$1; shift
    case $arg in
        -d) domain=$1; shift;;
        --domain=*) domain=${arg#*=};;
        -g) enable_git=true;;
        --git-deployment) enable_git=true;;
        *) echo "Unknown arg: $arg"; exit 1;;
    esac
done

zgulde

In general:

• Create a branch with your name
• Do you work in this branch
• Before switching branches, pulling, or pushing, make sure you have committed all changes
• Checkout the information on working with git in teams in the curriculum

I need to....

zgulde

Arrays Review

Given the following code:

var myArray = [1, 2, 3, 4, 5];

1. What is the element at index 0?