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@davecheney
davecheney / bm_test.go
Last active May 10, 2024 18:30
Which is faster ? map[string]bool or map[string]struct{} ?
package bm
import (
"testing"
)
var mb = map[string]bool{
"alpha": true,
"beta": true,
"gamma": true,
@hmartiro
hmartiro / zeromq-vs-redis.md
Last active April 14, 2024 20:33
Comparison of ZeroMQ and Redis for a robot control platform

ZeroMQ vs Redis

This document is research for the selection of a communication platform for robot-net.

Goal

The purpose of this component is to enable rapid, reliable, and elegant communication between the various nodes of the network, including controllers, sensors, and actuators (robot drivers). It will act as the core of robot-net to create a standardized infrastructure for robot control.

Requirements:

@asukakenji
asukakenji / go-stdlib-interface-selected.md
Last active June 6, 2024 08:15
Go (Golang) Standard Library Interfaces (Selected)

Go (Golang) Standard Library Interfaces (Selected)

This is not an exhaustive list of all interfaces in Go's standard library. I only list those I think are important. Interfaces defined in frequently used packages (like io, fmt) are included. Interfaces that have significant importance are also included.

All of the following information is based on go version go1.8.3 darwin/amd64.

@posener
posener / go-table-driven-tests-parallel.md
Last active April 30, 2024 20:34
Be Careful with Table Driven Tests and t.Parallel()

Be Careful with Table Driven Tests and t.Parallel()

We Gophers, love table-driven-tests, it makes our unittesting structured, and makes it easy to add different test cases with ease.

Let’s create our table driven test, for convenience, I chose to use t.Log as the test function. Notice that we don't have any assertion in this test, it is not needed to for the demonstration.

func TestTLog(t *testing.T) {
	t.Parallel()
@seanjensengrey
seanjensengrey / octal_x86.txt
Last active May 26, 2024 20:34
x86 is an octal machine
# source:http://geocities.com/SiliconValley/heights/7052/opcode.txt
From: mark@omnifest.uwm.edu (Mark Hopkins)
Newsgroups: alt.lang.asm
Subject: A Summary of the 80486 Opcodes and Instructions
(1) The 80x86 is an Octal Machine
This is a follow-up and revision of an article posted in alt.lang.asm on
7-5-92 concerning the 80x86 instruction encoding.
The only proper way to understand 80x86 coding is to realize that ALL 80x86
@johnhw
johnhw / umap_sparse.py
Last active January 6, 2024 16:09
1 million prime UMAP layout
### JHW 2018
import numpy as np
import umap
# This code from the excellent module at:
# https://stackoverflow.com/questions/4643647/fast-prime-factorization-module
import random
@aymericbeaumet
aymericbeaumet / delete-likes-from-twitter.md
Last active June 13, 2024 16:04
[Recipe] Delete all your likes/favorites from Twitter

Ever wanted to delete all your likes/favorites from Twitter but only found broken/expensive tools? You are in the right place.

  1. Go to: https://twitter.com/{username}/likes
  2. Open the console and run the following JavaScript code:
setInterval(() => {
  for (const d of document.querySelectorAll('div[data-testid="unlike"]')) {
    d.click()
 }
@mbecker
mbecker / restartgoroutine.go
Created October 14, 2019 16:55
Restart Goroutine
package main
import "fmt"
// number of desired workers
const nWorkers = 10
func main() {
// make a buffered channel with the space for my 10 workers
workerChan := make(chan *worker, nWorkers)
@coolreader18
coolreader18 / segfault.py
Last active March 30, 2024 08:05
CPython segfault in 5 lines of code
class E(BaseException):
def __new__(cls, *args, **kwargs):
return cls
def a(): yield
a().throw(E)
@dragonsinth
dragonsinth / gcp-kube.go
Last active May 5, 2024 13:22
Connect to Google Kubernetes with GCP credentials and pure Golang
package main
import (
"context"
"encoding/base64"
"flag"
"fmt"
"log"
container "google.golang.org/api/container/v1beta1"