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Split an image into a grid

Simple script to split an image into smaller grid of equal sizes, eg: 2x2, 2x3, 4x4, etc.

Requirements

It uses OpenCV to read/write the images. so you need to first install it with:

pip install opencv-python

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NetCon 2022

Un pequeño proyecto de scrapping para recoger los datos de todas las partidas de las NetCon 2022.

Dev

Para ejecutar el scrapper solo necesitas Cypress.

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Using Google oAuth2 on a CLI

This simple gist shows how to get an oAuth2 token and auto-refresh when needed.

Files

• main.go - main file where you need to set your credentials and needed scopes.
• token.go - token manager hides all the complexity of read/save/update the token.
• google_apis.go - contains some example functions to access Google APIs like Drive, People and Spreadsheets.

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// printJSON prints v as JSON encoded with indent to stdout. It panics on any error.
func printJSON(v interface{}) {
	w := json.NewEncoder(os.Stdout)
	w.SetIndent("", "\t")
	err := w.Encode(v)
	if err != nil {
		panic(err)
	}
}

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How to manage two Github users

If you want to have repos from two different Github users on the same machine, follow this steps:

• Generating a new SSH key
  • IMPORTANT: save your id_rsa to a different file, ex: id_rsa_second_user
• Adding the new SSH key to GitHub
• Add an alias to your ssh config editing $HOME/.ssh/config:

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Introducción a Reactive Programming con RxJS

En este articulo vamos a revisar algunos conceptos básicos de programación reactiva y como podemos sacar provecho de ellos en nuestros programas. Pero antes de empezar, preguntaros lo siguiente:

-- ¿Que diferencia hay entre una consulta a base de datos y una serie de clicks de ratón?

-- Ninguna, ambas son colecciones de datos

¿Qué es Reactive Programming?

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Exercise 1

create a server to:

• output the diagonal sum o a given array by POST
• use a middleware to validate a square matrix input

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Exercise 1

create modules to implement this features

• convert string to title capitalized
• sanitize a string
• count word frequency

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'use strict';

let convert = require('./convert');
let freq = require('./frequency');
let input = process.argv[2] || 'EMPTY';

console.log( freq(convert(input)));

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'use strict';

let convert = (str) => {
  return str
    .trim()
    .split(/ +/)
    .reduce((acc, word) => {
      return (acc + ' ' + word[0].toUpperCase() +  word.slice(1).toLowerCase()).trim();
  }, '');
}