timvisee

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

mdesantis

TL;DR

Install Postgres 10, and then:

sudo pg_dropcluster 10 main --stop
sudo pg_upgradecluster 9.6 main
sudo pg_dropcluster 9.6 main

JoelQ

class Dollar
  attr_reader :cents

  def initialize(cents:)
    @cents = cents
  end

  def hash
    [self.class, cents].hash
  end