mritzco

Installing TortoiseHG

(June 2018)

PPA for tortoise is gone and Tortoise is removed when mercurial is updated.

If you're ok having an old version of Mercurial, you can reinstall following this guide:

First let's see the requirements:

sudo apt-get install tortoisehg

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

// 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

Running your own private blockchain and connecting to it.

1. Start bootnode and private network

Go to wherever you want to run this.

  mkdir privatechain
  cd privatechain/
  
  touch genesis.json 
 mkdir data

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

// hard disk holder


module stand(
   wall=3,
   height=20,
   dw=20,
   dd=80
) {
   wall2 = wall*2;

mritzco

// http://www.teacherschoice.com.au/Maths_Library/Trigonometry/triangle_given_3_points.htm
const triangle = {
    corners: {},
    angles:{},
    sides: {},
    create: function (a,b,c,d,e,f) {
        this.corners.A = [ a, b ],
        this.corners.B = [ c, d ],
        this.corners.C = [ e, f ]
        return this;

mritzco

0x0a47bDaf1b1FD7E79273e286717Cb001cc05Bc48

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

/* FROM LESS */
svg.clock {
  background: #ffffff;
  width: 120px;
  height: 120px;
  /* Don't define height - not overridable */
  fill: none;
  /* time markers */
  /* Clock face and center */
}