Validating age in Rails

Katie Radford — Tue, 23 May 2023 20:04:52 +0000

Let's say you need to add a validation for the birthdate column so that the User's age is between 1 and 3 (must be a toddler).

In your User model:

validate :toddler_age

def toddler_age
  birthdate_within_range = ((4.years.ago - 1.day)..1.year.ago).cover?(birthdate)
  errors.add(:birthdate, 'must be 1-3 years old') unless birthdate_within_range
end

Quickest JS string generator

Katie Radford — Wed, 07 Dec 2022 17:44:45 +0000

If you need a string of a certain length but don't care so much about the content, this one-line function is just what you are looking for!

const generateString = length => ''.padEnd(length, 'ABC123')

And you can create strings of any length without directly pasting a huge string.

generateString(200)
'ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123ABC123AB'

Forem: Katie Radford

Validating age in Rails

Quickest JS string generator