samuraijane

const shoppingList = ['apples', 'biscuits', 'cabbage', 'dip'];
const isCode200 = () => Math.random() >= 0.5;

function getShoppingList() {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      if (isCode200()) {
        resolve(shoppingList);
      } else {
        reject('There was a problem with the server, please try again.');

samuraijane

// callback functions can help us deal with asynchronous code but it can also get messy if we have multiple sequential callbacks (not shown here)

var shoppingList = ['apples', 'biscuits', 'cabbage'];

function addItem(item, callback) {
  setTimeout(() => {
    shoppingList.push(item);
    console.log("Item added to shopping list");
    callback();
  }, 200);

samuraijane

// without a callback, asynchronous code has unexpected results

var shoppingList = ['apples', 'biscuits', 'cabbage'];

function addItem(item) {
  setTimeout(() => {
    shoppingList.push(item);
    console.log("Item added to shopping list");
  }, 200);
}

samuraijane

### CLI ###
1. `mkdir parent`
2. `cd parent`
3. `touch blah.txt`
4. `mkdir child`
5. `ls -al` --> .DS_Store is not present

### Finder ###
6. drag blah.txt from parent/ to parent/child/
7. drag blah.txt from parent/child/ to parent/

samuraijane

#!/bin/bash
PARENT_DIR=$1
DOC_TITLE=$2

if (( $# < 2)); then
  echo "- - - - -\nERROR: One or more missing arguments\nExecute this command as \"xxf <parentDirectoryName> <titleForHTMLDoc>\"\n- - - - -"
  1>&2
  exit 1  # if in ~/.bashrc, use return here instead of exit
fi

samuraijane

#!/bin/bash
PARENT_DIR=$1
if [[ -z $PARENT_DIR ]]; then
  echo "Name of the parent directory"
  read PARENT_DIR
fi

CURRENT_DIR=$(pwd)
[[ -d $PARENT_DIR ]] && echo $PARENT_DIR already exists. Process terminated.

samuraijane

In order to run TypeScript code in a shell from the command line, you need NPM's `ts-node` package.
`npm install -g @ts-node@10.4.0`
`npm install -g @typescript@4.4.4`

If you see a warning or an error that TypeScript has an unmet peer dependency for `@type/node`, then install it directly.
`npm install -g @types/node`

Initiate a TypeScript Node Shell
`ts-node`

samuraijane

#let Terminal know that you are using bash shell (the line that begins with '#!' is known as the interpreter line)
#!/bin/sh

#set the version number for this 
#version 0.0.3 (8 July 2016)

#create a variable to hold the name of the new repository
#the '$1' denotes the first argument passed to this shell 
#for example, entering 'xxr repo-name' in Terminal stores the first argument, or 'repo-name', in the variable 'repo'
repo=$1

samuraijane

alias gs='git status -sb'
alias ga='git add'
alias gb='git branch'
alias gc='git commit'
alias gd='git diff'
alias gl='git log'
alias gp='git push origin master'
alias gpush='git push origin'
alias gdrop='git stash drop stash@{0}'
alias rebase='git pull --rebase'

samuraijane

# --------------------------------------------------------------
# IMPORT ALIAS COMMANDS
# --------------------------------------------------------------
. ~/.alias


# --------------------------------------------------------------
# NODE VERSION MANAGER
# --------------------------------------------------------------
export NVM_DIR="$HOME/.nvm"