congruence
Validate the structure of Javascript objects using semantic templates. Written as an underscore/lodash mixin.
what-is-the-weekday
Implementing zeller's congruence to discover what is the weekday given a date
zeller
Zeller's congruence is an algorithm devised by Christian Zeller to calculate the day of the week for any Julian or Gregorian calendar date.
bijection
Node.js utility for mapping the properties of two Objects between each other