Ulises Santana ulisesantana

😍

In love with TypeScript

I love to do stuff in TypeScript or JavaScript. I also love to work on code with test.

ulisesantana / algebraicTypes.rs

Created November 16, 2021 23:46

Ejemplo de tipos algebraicos en Rust

	pub mod flight_discount {
	pub trait Discount {
	fn percentage(self: Self) -> u8;
	}

	#[allow(dead_code)]
	pub enum SpanishSubsidy {
	LargeFamily,
	ResidentOfIslandsOrCeuta,
	SpecialResidentLargeFamily,

ulisesantana / generate-huge-json.mjs

Last active April 10, 2024 19:09

Script for generating a JSON file with 100 million records. The output file size is 8,1 GB.

	import { Readable, pipeline } from 'stream'
	import fs from 'fs'
	import path from 'path'
	import { EOL } from 'os'

	function createTransaction () {
	return {
	date: new Date(Math.random() * 100_000_000_000),
	type: Math.random() > 0.5 ? 'INCOME' : 'OUTCOME',
	amount: +(Math.random() * 100).toFixed(2)

ulisesantana / os-report.mjs

Last active March 4, 2022 08:49

A simple OS Report function

	export function osReport(os) {
	const cpus = os.cpus()
	const totalMemory = os.totalmem()
	const freeMemory = os.freemem()
	const usedMemory = totalMemory - freeMemory
	return `
	Arch: ${os.arch}
	CPUS: ${cpus.length} (${cpus[0].model} ${cpus[0].speed})
	Memory: ${fromBytesToGigabytes(usedMemory)}/${fromBytesToGigabytes(totalMemory)}
	Platform: ${os.platform}