fernandocanizo

Pure ESM package

The package that linked you here is now pure ESM. It cannot be require()'d from CommonJS.

This means you have the following choices:

1. Use ESM yourself. (preferred)
   Use import foo from 'foo' instead of const foo = require('foo') to import the package. You also need to put "type": "module" in your package.json and more. Follow the below guide.
2. If the package is used in an async context, you could use await import(…) from CommonJS instead of require(…).
3. Stay on the existing version of the package until you can move to ESM.

fernandocanizo

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

fernandocanizo

The following shell transcript shows how to:

• Create a GPG key
• Create a pass database
• Add git support to the pass database
• Create a remote git repository
• Push the pass database to the remote git repository
• Fetch and display your passwords from another host

It is assumed that the pass package has been installed on both the first and second computers.

fernandocanizo

Table of Contents

• TL;DR
• General
  • Method Information:
  • Benchmarking Information:
  • Postgres/PostGIS Information:
• Create Benchmark Function
• Tests

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--- PSQL queries which also duplicated from https://github.com/anvk/AwesomePSQLList/blob/master/README.md
--- some of them taken from https://www.slideshare.net/alexeylesovsky/deep-dive-into-postgresql-statistics-54594192

-- I'm not an expert in PSQL. Just a developer who is trying to accumulate useful stat queries which could potentially explain problems in your Postgres DB.

------------
-- Basics --
------------

-- Get indexes of tables

fernandocanizo

// try to do some stuff here

var d3 = require('d3');

d3.select('body').append('text')
  .text('hey now thats somethin a webpage without any writing any htmml')


console.log('yoyo')

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// === Arrays

var [a, b] = [1, 2];
console.log(a, b);
//=> 1 2


// Use from functions, only select from pattern
var foo = () => {
  return [1, 2, 3];

fernandocanizo

The difference between XYZ and TMS tiles and how to convert between them

Lots of tile-based maps use either the XYZ or TMS scheme. These are the maps that have tiles ending in /0/0/0.png or something. Sometimes if it's a script, it'll look like &z=0&y=0&x=0 instead. Anyway, these are usually maps in Spherical Mercator.

Good examples are OpenStreetMap, Google Maps, MapBox, MapQuest, etc. Lots of maps.

Most of those are in XYZ. The best documentation for that is slippy map tilenames on the OSM Wiki, and Klokan's Tiles a la Google.

fernandocanizo

var connectionString = 'postgres://localhost:5432/postgres';
var Promise=require('bluebird');


var knex = require('knex')({
  client: 'pg',
  connection: {
      user: 'postgres',
      database: 'postgres',
      port: 5432,

fernandocanizo

from timeit import Timer
from operator import attrgetter
from random import randint

def timeit( stmt, setup ):
	t = Timer(stmt=stmt, setup=setup)
	print "%.2f usec/pass" % (100000 * t.timeit(number=10000)/10000)

class Person(object):
	def __init__(self, age):