Àyìnlá Ọmọ́tọ́ṣọ̀ Abdulsalam ayinlaaji

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

API USAGE

Market Filter
Navigation
Market Navigation
Price Data

/navigation

method : POST

Snips

Find and rename files with regexp

find . -type f -name '*.stories.tsx' -execdir  rename  -v 's/(.*)\.stories\.tsx$/component\.stories\.tsx/' {} \;;

Redirect port:

sudo iptables -t nat -A PREROUTING -p tcp --dport 80 -j REDIRECT --to-ports 8000

	#!/bin/bash

	sudo apt-get update
	sudo apt-get install -y wget git
	wget -qO- https://deb.nodesource.com/setup_8.x \| sudo bash -
	sudo apt-get install -y nodejs build-essential
	sudo npm install -g nodemon yarn pm2

	#!/bin/bash

	# Determine OS platform
	UNAME=$(uname \| tr "[:upper:]" "[:lower:]")
	# If Linux or darwin, try to determine specific distribution
	if [ "$UNAME" == "linux" ] ; then
	# If available, use LSB to identify distribution
	if [ -f /etc/lsb-release -o -d /etc/lsb-release.d ]; then
	export DISTRO=$(lsb_release -i \| cut -d: -f2 \| sed s/'^\t'//)
	# Otherwise, use release info file

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>immutable Objects #jsbench #jsperf</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
	</head>
	<body>
	<h1>Open the console to view the results</h1>

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8"/>
	<title>Slicing arguments #jsbench #jsperf</title>
	<script src="https://cdnjs.cloudflare.com/ajax/libs/benchmark/1.0.0/benchmark.min.js"></script>
	<script src="./suite.js"></script>
	</head>
	<body>
	<h1>Open the console to view the results</h1>

	// Understanding currying
	// Github Git @ayinlaaji

	const curry = funcToBeCurried => {
	const noArgs = funcToBeCurried.length;
	return doYouHaveMore([]);

	//Hoisting :D

	function doYouHaveMore(prevArgs) {

	// Understanding partial applications
	// Github Gist @ayinlaaji

	function partiallyApply(func) {
	const someArgs = Array.prototype.slice.call(arguments, 1);
	return giveMeRemainingArgs;

	//Hoisting :D

	function giveMeRemainingArgs() {

	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