Skip to content

Instantly share code, notes, and snippets.

View casprwang's full-sized avatar

Casper Wang casprwang

View GitHub Profile
@jboner
jboner / latency.txt
Last active May 18, 2024 15:58
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@staltz
staltz / introrx.md
Last active May 18, 2024 05:17
The introduction to Reactive Programming you've been missing

Sass/Less Comparison

In this document I am using Sass's SCSS syntax. You can choose to use the indented syntax in sass, if you prefer it, it has no functional differences from the SCSS syntax.

For Less, I'm using the JavaScript version because this is what they suggest on the website. The ruby version may be different.

Variables

@vratiu
vratiu / .bash_aliases
Last active May 16, 2024 16:29
Git shell coloring
# Customize BASH PS1 prompt to show current GIT repository and branch.
# by Mike Stewart - http://MediaDoneRight.com
# SETUP CONSTANTS
# Bunch-o-predefined colors. Makes reading code easier than escape sequences.
# I don't remember where I found this. o_O
# Reset
Color_Off="\[\033[0m\]" # Text Reset
@QinMing
QinMing / .zshrc
Last active May 14, 2024 23:18
.zshrc (lazy loading shell functions)
# Copyright (c) 2016-2018 Ming Qin (覃明) <https://github.com/QinMing>
# Open source under MIT LICENSE.
lazy_load() {
# Act as a stub to another shell function/command. When first run, it will load the actual function/command then execute it.
# E.g. This made my zsh load 0.8 seconds faster by loading `nvm` when "nvm", "npm" or "node" is used for the first time
# $1: space separated list of alias to release after the first load
# $2: file to source
# $3: name of the command to run after it's loaded
# $4+: argv to be passed to $3
@rtfpessoa
rtfpessoa / lazy-load-nvm.sh
Created August 26, 2016 11:42
NVM lazy loading script
#!/bin/bash
#
# NVM lazy loading script
#
# NVM takes on average half of a second to load, which is more than whole prezto takes to load.
# This can be noticed when you open a new shell.
# To avoid this, we are creating placeholder function
# for nvm, node, and all the node packages previously installed in the system
# to only load nvm when it is needed.
@Miserlou
Miserlou / semantic-2.2.9.html
Created March 4, 2017 00:46
Semantic UI 2.2.9 CDN Starter
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8" />
<title>Semantic UI CDN</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.9/semantic.min.css"/>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.2.9/semantic.min.js"></script>
</head>
<body>
@fubarhouse
fubarhouse / loop_files_folders_recursively.go
Last active January 2, 2023 10:31 — forked from francoishill/loop_files_folders_recursively.go
Loop through files and folders recursively in golang
package main
import (
"fmt"
"os"
"path/filepath"
)
func run() ([]string, error) {
searchDir := "c:/path/to/dir"
@owulveryck
owulveryck / app.js
Last active November 24, 2022 22:08
WebSocket simple example / server in go, client in JS
window.addEventListener("load", function(evt) {
var output = document.getElementById("output");
var input = document.getElementById("input");
var ws;
var print = function(message) {
var d = document.createElement("div");
d.innerHTML = message;
output.appendChild(d);