Danilo Martins DanSmaR

FFmpeg cheat sheet

A list of useful commands for the FFmpeg command line tool.

Download FFmpeg: https://www.ffmpeg.org/download.html

Full documentation: https://www.ffmpeg.org/ffmpeg.html

Basic conversion

Git Commit Best Practices

Basic Rules

Commit Related Changes

A commit should be a wrapper for related changes. For example, fixing two different bugs should produce two separate commits. Small commits make it easier for other developers to understand the changes and roll them back if something went wrong. With tools like the staging area and the ability to stage only parts of a file, Git makes it easy to create very granular commits.

Commit Often

Committing often keeps your commits small and, again, helps you commit only related changes. Moreover, it allows you to share your code more frequently with others. That way it‘s easier for everyone to integrate changes regularly and avoid having merge conflicts. Having large commits and sharing them infrequently, in contrast, makes it hard to solve conflicts.

Copied from http://code.lancepollard.com/complete-list-of-html-meta-tags/

Basic HTML Meta Tags

<meta name="keywords" content="your, tags"/>
<meta name="description" content="150 words"/>
<meta name="subject" content="your website's subject">
<meta name="copyright"content="company name">
<meta name="language" content="ES">

	#Model

	@user.should have(1).error_on(:username) # Checks whether there is an error in username
	@user.errors[:username].should include("can't be blank") # check for the error message

	#Rendering
	response.should render_template(:index)

	#Redirecting
	response.should redirect_to(movies_path)

	<!DOCTYPE html>
	<html lang="en">

	<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Cookies</title>
	<style>
	html {

	"""
	Single Responsibility Principle
	“…You had one job” — Loki to Skurge in Thor: Ragnarok
	A class should have only one job.
	If a class has more than one responsibility, it becomes coupled.
	A change to one responsibility results to modification of the other responsibility.
	"""

	class Animal:
	def __init__(self, name: str):

	const assert = require('assert')

	function getAnimals(fetch, id) {
	return fetch('http://api.animalfarmgame.com/animals/' + id)
	.then(response => response.json())
	.then(data => data.results[0])
	}

	describe('getAnimals', () => {
	it('calls fetch with the correct url', () => {

	function Person(saying) {
	this.saying = saying
	}

	Person.prototype.talk = function() {
	console.log('I say:', this.saying)
	}

	function newFake(constructor) {
	var obj = {}


	def add(x, y):
	return x + y