Om4ar

This is the process and standard that I use for the vast majority of my Laravel code bases and projects.

For more information about php-cs-fixer visit the project repository: FriendsOfPHP/PHP-CS-FIXER.

Setup

Add the following .php_cs file to the root of your project.

.php_cs

Workbox runtime caching recipes

Your Service Worker script will need to import in Workbox and initialize it before calling any of the routes documented in this write-up, similar to the below:

importScripts('workbox-sw.prod.v1.3.0.js');
const workbox = new WorkboxSW();

// Placeholder array populated automatically by workboxBuild.injectManifest()

Parameters

Container: MP4

Parameter	YouTube recommends setting
-movflags faststart	moov atom at the front of the file (Fast Start)

Video codec: H.264

Shortcut — Action

CTRL + A — Move to the beginning of the line
CTRL + E — Move to the end of the line
CTRL + [left arrow] — Move one word backward (on some systems this is ALT + B)
CTRL + [right arrow] — Move one word forward (on some systems this is ALT + F)
CTRL + U — (bash) Clear the characters on the line before the current cursor position
CTRL + U —(zsh) If you're using the zsh, this will clear the entire line
CTRL + K — Clear the characters on the line after the current cursor position
ESC + [backspace] — Delete the word in front of the cursor

Here's how you could create custom error classes in Node.js using latest ES6 / ES2015 syntax.

I've tried to make it as lean and unobtrusive as possible.

Defining our own base class for errors

errors/AppError.js

Concurrency in JavaScript

Javascript is a programming language with a peculiar twist. Its event driven model means that nothing blocks and everything runs concurrently. This is not to be confused with the same type of concurrency as running in parallel on multiple cores. Javascript is single threaded so each program runs on a single core yet every line of code executes without waiting for anything to return. This sounds weird but it's true. If you want to have any type of sequential ordering you can use events, callbacks, or as of late promises.

Kafka Topics

List existing topics

bin/kafka-topics.sh --zookeeper localhost:2181 --list

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Purge a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --alter --topic mytopic --config retention.ms=1000

... wait a minute ...

	class PromiseSimple {
	constructor(executionFunction) {
	this.promiseChain = [];
	this.handleError = () => {};

	this.onResolve = this.onResolve.bind(this);
	this.onReject = this.onReject.bind(this);

	executionFunction(this.onResolve, this.onReject);
	}

	# Redis Cheatsheet
	# All the commands you need to know


	redis-server /path/redis.conf # start redis with the related configuration file
	redis-cli # opens a redis prompt


	# Strings.

	docker logs nginx 2>&1 \| grep "127."

	# ref: http://stackoverflow.com/questions/34724980/finding-a-string-in-docker-logs-of-container