mritzco

Creating an executable NPM package and using it

This short guide explains how to create an NPM package that can be called as a script from another project. For clarity: The package to execute will be called: Module The place where you use it: Application

1. Build your module

Create a standard module ignore command line parsing

mritzco

// From https://www.sitepoint.com/cache-fetched-ajax-requests/
// All credits to: Peter Bengtsson
// Added Content-type to headers so it can go to traditional validation like fetch does
// Add some debugging messages: activate with { verbose: true }
// Add a request to be able to add headers instead of just calling URL

const CachedFetch = (url, options) => {

  let expiry = options.seconds || 5 * 60 // 5 min default
  let logger = (options.verbose) ? console.log : function(){};

mritzco

const fs = require('fs-extra');
const methods = {}, priv = {};
// Private methods to do string replacement. Not optimized and cummulative trying to keep it simple.
// far better options here: https://stackoverflow.com/questions/5069464/replace-multiple-strings-at-once
priv.replaceObj = function(value, vars) {
    let obj = value;
    Object.keys(obj).forEach(function(item) {
        obj[item] = priv.replaceStr(obj[item], vars);
    });
    return obj;

mritzco

Running ar.js from your own computer

The Error

I tried to run https://dev.to/andraconnect/augmented-reality-in-10-lines-of-html and https://github.com/jeromeetienne/ar.js from my own computer and got the following error:

Can't access user media :()

This error comes from:

https://github.com/jeromeetienne/jsartoolkit-experiments/blob/master/basic.html Line 100: navigator.getUserMedia

mritzco

git commit -m "Something terribly misguided" # (0: Your Accident)
git reset HEAD~                              # (1)
#[ edit files as necessary ]                    # (2)
git add .                                    # (3)
git commit -c ORIG_HEAD                      # (4)

#Ref: https://stackoverflow.com/questions/927358/how-do-i-undo-the-most-recent-local-commits-in-git

mritzco

# not really an sh file but the sequence I used to install, might work as .sh but haven't tried
# If running as .sh with sudo it might not need the sudo's
# 1. Clone the repo and create the directories
git clone https://github.com/albfan/miraclecast.git
cd miraclecast/
mkdir build
cd build/
# 2. There's lots of dependencies not listed
sudo apt-get install autoconf automake libtool libudev-dev libsystemd-dev libglib2.0-dev libreadline-dev
# 3. Continue the building process 

mritzco

#Tweak timing between key sequence
set -s escape-time 0

## active window title colors
set-window-option -g window-status-current-attr bright

# Set prefix to Ctrl-Space instead of Ctrl-b
unbind C-b
set -g prefix C-Space
bind Space send-prefix

mritzco

#!/bin/bash

filetype=png

for i in *.$filetype; do
  name=$(echo $i | sed 's/\.[^.]*$//')
  echo "Processing: $i"
  mkdir -p $name
  convert $i -resize 700x700\> $name/700;
  convert $i -resize 460x460\> $name/460;

mritzco

// src/utils/CacheCollection.js
/**
 * Creates a collection of unique values in local storage
 * Works with arrays only
 * Singleton method to allow sharing between classes without adding extra stuff
 */
class CacheCollection {
    constructor (key, expire=1200) {
        this.key = key;
        this.expire = expire;

mritzco

# Find out true IP for DB access.
# Ref: https://www.digitalocean.com/community/questions/trusted-sources-not-allowing-connections-from-my-ip?comment=94488#
curl ifconfig.io