Lessons learned the hard way

Let’s keep these short and to the point.

Not everyone has a first and last name.

• Perhaps Just store Name in a database.

• https://www.kalzumeus.com/2010/06/17/falsehoods-programmers-believe-about-names/

Internet connections can cut out at any moment while using a web form.

• Show a proper error and test for this using your web browser development tools.

• The fetch api won't have an error response / status code in these cases

<select> inputs without a value attribute in the option tags will submit other-language values if client-side translation is activer

• use <option value="hello">hello</option> instead of just <option>hello</option>

Python3’s built in round function will round .5’s towards the even choice

• round(0.5) == 0, round(1.5) == 2, round(2.5) == 2

  # Hack
  def rounder(number, ndigits=None):
      return round(number + 1e-8, ndigits)