Skip to content

Instantly share code, notes, and snippets.

View ErikKalkoken's full-sized avatar

Erik Kalkoken ErikKalkoken

View GitHub Profile
@j33ty
j33ty / print-memory.go
Created May 22, 2019 20:54
Go print current memory
package main
import (
"runtime"
"fmt"
"time"
)
func main() {
// Print our starting memory usage (should be around 0mb)
@bgadrian
bgadrian / set.go
Last active October 18, 2024 06:13
How to implement a simple set data structure in golang
type Set struct {
list map[int]struct{} //empty structs occupy 0 memory
}
func (s *Set) Has(v int) bool {
_, ok := s.list[v]
return ok
}
@juampynr
juampynr / CHANGELOG.md
Created March 27, 2018 09:35
Sample CHANGELOG

Change Log

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

[Unreleased] - yyyy-mm-dd

Here we write upgrading notes for brands. It's a team effort to make them as

@a-tal
a-tal / id_ranges.md
Last active March 9, 2024 17:34
EVE Online ID ranges
from to description
0 10,000 System items (including junkyards and other special purpose items
500,000 1,000,000 Factions
1,000,000 2,000,000 NPC corporations
3,000,000 4,000,000 NPC characters (agents and NPC corporation CEO's)
9,000,000 10,000,000 Universes
10,000,000 11,000,000 NEW-EDEN Regions
11,000,000 12,000,000 Wormhole Regions
12,000,000 13,000,000 Abyssal regions
@wojteklu
wojteklu / clean_code.md
Last active November 20, 2024 10:49
Summary of 'Clean code' by Robert C. Martin

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.


General rules

  1. Follow standard conventions.
  2. Keep it simple stupid. 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.

Design rules

@superbrothers
superbrothers / main.go
Created September 8, 2016 02:42
http request with context in Go
package main
import (
"context"
"fmt"
"log"
"net/http"
"time"
)
@rg3915
rg3915 / graph_models.md
Last active February 20, 2024 07:39
Generate graphic model Django with PyGraphViz pygraphviz pydot generate model graph model 2020

How to generate graphic model Django with PyGraphViz?

sudo apt-get install -y graphviz libgraphviz-dev pkg-config
python3 -m venv .venv
source .venv/bin/activate
pip install -r requirements.txt
pip install pygraphviz
pip uninstall pyparsing
pip install -Iv https://pypi.python.org/packages/source/p/pyparsing/pyparsing-1.5.7.tar.gz#md5=9be0fcdcc595199c646ab317c1d9a709
@Grokzen
Grokzen / Symmetrical ManyToMany Filter Horizontal in Django Admin.py
Last active September 4, 2024 11:27
Symmetrical ManyToMany Filter Horizontal in Django Admin
# Based on post from: https://snipt.net/chrisdpratt/symmetrical-manytomany-filter-horizontal-in-django-admin/#L-26
# Only reposting to avoid loosing it.
"""
When adding a many-to-many (m2m) relationship in Django, you can use a nice filter-style multiple select widget to manage entries. However, Django only lets you edit the m2m relationship this way on the forward model. The only built-in method in Django to edit the reverse relationship in the admin is through an InlineModelAdmin.
Below is an example of how to create a filtered multiple select for the reverse relationship, so that editing entries is as easy as in the forward direction.
IMPORTANT: I have no idea for what exact versions of Django this will work for, is compatible with or was intended for.
IMAGETYPE_UNKNOWN 0
IMAGETYPE_GIF 1
IMAGETYPE_JPEG 2
IMAGETYPE_PNG 3
IMAGETYPE_SWF 4
IMAGETYPE_PSD 5
IMAGETYPE_BMP 6
IMAGETYPE_TIFF_II 7
IMAGETYPE_TIFF_MM 8
IMAGETYPE_JPEG2000 9
@mistic100
mistic100 / imageroundedrectangle.php
Last active October 27, 2021 08:47
[PHP] Draw a rectangle with rounded corners
<?php
/**
* Draw a rectangle with rounded corners.
* @param ressource &$img An image resource
* @param int $x1 Upper left x coordinate
* @param int $y1 Upper left y coordinate
* @param int $x2 Bottom right x coordinate
* @param int $y2 Bottom right y coordinate
* @param int $r Corners radius
* @param int $color A color identifier created with imagecolorallocate()