mlliarm

Electron apps

• Marp: Markdown presentation ecosystem.

• muryoimpl/slippr: markdown presentation app by Electron

• joe-re/cafe-pitch Markdown-driven presentation tool built on Electron.

Slide deck frameworks supporting Markdown source

mlliarm

//header
#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;
typedef long long int ll;
typedef long double ld;

mlliarm

Table Of Content

Skip to the relevant sections if needed.

• 2-min tutorial to do it the quick-and-dirty-way
• Concepts for resolving Git conflicts
• Setting up different editors / tool for using git mergetool
  • Finding out what mergetool editors are supported
• mergetool simple code example for vimdiff
  • Resolving conflict from a Git pull
• Other great references and tutorials

mlliarm

Installing Python 3.7 from source on Ubuntu 18.04

# update system
sudo apt update && sudo apt upgrade -y

# install build tools and python prerequisites
sudo apt install build-essential libssl-dev zlib1g-dev libncurses5-dev libncursesw5-dev libreadline-dev libsqlite3-dev libgdbm-dev libdb5.3-dev libbz2-dev libexpat1-dev liblzma-dev tk-dev libffi-dev

# download and extract python

mlliarm

// Link to the original: http://www.jsoftware.com/jwiki/Essays/Incunabulum
// Found at https://news.ycombinator.com/item?id=8533843

typedef char C;

typedef long I;

typedef struct a {
  I t,r,d[3],p[2];
}* A;

mlliarm

Below are the Big O performance of common functions of different Java Collections.


List                 | Add  | Remove | Get  | Contains | Next | Data Structure
---------------------|------|--------|------|----------|------|---------------
ArrayList            | O(1) |  O(n)  | O(1) |   O(n)   | O(1) | Array
LinkedList           | O(1) |  O(1)  | O(n) |   O(n)   | O(1) | Linked List
CopyOnWriteArrayList | O(n) |  O(n)  | O(1) |   O(n)   | O(1) | Array

mlliarm

// Based on the article 'Combinators for logic programming' by Michael Spivey and Silvija Seres.
// Original author's blog post: http://ademar.name/blog/2011/06/combinators-for-logic-programm.html
// More info about this language: https://en.wikipedia.org/wiki/F_Sharp_(programming_language)

let rec inf_seq n =  seq { yield n; yield! inf_seq (n+1) }

let rec lzw f l1 l2 =
    LazyList.delayed ( fun () -> 
    match l1,l2 with
    |LazyList.Nil, _ -> l2

mlliarm

Problem

A lot of GitHub projects need to have pretty math formulas in READMEs, wikis or other markdown pages. The desired approach would be to just write inline LaTeX-style formulas like this:

$e^{i \pi} = -1$

Unfortunately, GitHub does not support inline formulas. The issue is tracked here.

Investigation

mlliarm

ATTENTION READER

BEWARE/ACHTUNG: The Bash script below doesn't work as-is on a GNU/Linux system, as GNU/Linux doesn't have the osascript OSX binary, as this is a native binary in OSX (see: OS X man page of osascript, how to use osascript binary within an OS X system). Please monitor the ticket at the repo of the python osascript binary. This is our best shot.

What and how

What

• "Show macOS notification when long running command finishes and your terminal is not in focus." (from the title).
• So it seems that the suggestion script is meant to run on OSX only (hence the osascript call).
• I was able to find this (osascript) python package that seems to do that same thing. I'll test this.
• Well, the previously found interesting looking PyPy solution, osascript is failing to work with my o

mlliarm

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

Bob Martin's book in Amazon.

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General rules

1. Follow standard conventions.
2. Keep it simple stupid (KISS). Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.