AndreiHondrari

QEMU essential commands

Observations

• KVM acceleration is for Linux machines
• HVF acceleration is for MacOS Hypervisor.Framework

qemu-img options explained

• -f specify disk format

AndreiHondrari

# Docker
# dummy docker containers
docker create --name ubuntu_can ubuntu /bin/bash -c "sleep infinity"
docker create --name alpine_box alpine /bin/sh -c "sleep infinity"

# Image conversion
find . -name "*.jpg" -print0 | xargs -0 -I xx convert xx -resize 1920 -quality 85 xx
find . -type f -name "*.png" | xargs -I xx basename -s .png xx | xargs -I xx convert xx.png -resize 960 -quality 90 output/xx.jpg

AndreiHondrari

import secrets


def generate_django_secret_key(length=50):
  allowed_chars=(
      'abcdefghijklmnopqrstuvwxyz'
      'ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'
  )
  return ''.join(secrets.choice(allowed_chars) for i in range(length))

AndreiHondrari

Remarkable code samples - Andrei G. Hondrari

Data processing

• graph representation - https://stackoverflow.com/questions/55505389/how-to-build-this-graph-in-python/55517614#55517614
• detection of anomalous values within a signal, hence a series of values - https://stackoverflow.com/questions/53895442/finding-anomalous-values-from-sinusoidal-data/53900407#53900407
• binary/byte low level operations - https://stackoverflow.com/questions/55523234/efficient-way-to-append-bytes-to-a-word-and-reverse-them/55523858#55523858
• large text processing - https://stackoverflow.com/questions/53795266/iterate-over-huge-text-file-read-chunks-between-two-reoccurring-patterns-using/53795333#53795333
• multiprocessing of large datasets - https://stackoverflow.com/questions/53894014/how-to-efficiently-perform-row-wise-operations-using-pandas/53897491#53897491
• search algorithm within time-complexity bounds - https://stackoverflow.com/questions/55405236/search-in-rotated-sorted-array-in-olog-n-time/55406388#55406388

AndreiHondrari

Math Books

Beginner

• A Mind for Numbers: How to Excel at Math and Science (Even If You Flunked Algebra)
• Math Dictionary for Kids: The #1 Guide for Helping Kids With Math
• Visual Math Dictionary
• The Usborne Illustrated Dictionary of Math: Internet Referenced
• Merriam-Webster's Pocket Guide to Business and Everyday Math

AndreiHondrari

###Index

• Meta-Lists
• Graphics Programming
• Language Agnostic
• Android
• Autotools
• ASP.NET MVC
• Assembly Language
• Bash
• C / C++

AndreiHondrari

This is a collection of books that I've researched, scanned the TOCs of, and am currently working through.  The books are selected based on quality of content, reviews, and reccommendations of various 'best of' lists.

The goal of this collection is to promote mastery of generally applicable programming concepts.

Most topics are covered with Python as the primary language due to its conciseness, which is ideal for learning & practicing new concepts with minimal syntactic boilerplate.

JavaScript & Kotlin are listed in the Tooling section; as they allow extension of VS Code and the IntelliJ suite of IDEs, which cover most development needs.

 

AndreiHondrari

Recommended Books

A list of useful books to improve your skills

Recommendations from others are noted in (parentheses). The rest are my personal recommendations.

Programming

Building your core

• The Pragmatic Programmer - Hunt & Thomas

AndreiHondrari

function isIEBrowser() {
    const userAgent = window.navigator.userAgent;

    if (userAgent.includes("MSIE") || userAgent.includes("Trident"))
        return true;

    return false;
}

document.addEventListener('DOMContentLoaded', function(e) {

AndreiHondrari

Useful JavaScript Libraries

Utilities

• Lodash - utility functions for arrays, strings, objects, etc.
• Underscore - utility functions for arrays, strings, objects, etc.
• ImmutableJS - immutable data structures
• RamdaJS - practical functional library
• MathJS - extensive math library
• MomentJS - Parse, validate, manipulate, and display dates