datelib

datelib is a JS library for dates.

this library includes the D object with several date helper methods. D wraps the traditional Date object and provides programmer convenienances including:

• D.year

• D.yr

• D.month

• D.mon

• D.dy

• D.date

• D.getfancyDate [this is a helper method for D.format()]

• D.hours

• D.mins

• D.secs

• D.format()

• D.when()

testing notes

this repository includes unit tests. the tests are helpful for understanding how each function should perform. if you add a new function, please add a corresponding test.

run all tests with:

npm test

generate a test coverage report with:

npm jest --coverage

additional notes

dates in JS are represented as the number of milliseconds since Thursday, January 1, 1970, 12:00 AM. this is called the unix Epoch.

each day takes 86,400 seconds.

86,400 / 60 -> minutes

86,400 / 60 / 60 -> hours

86,400 / 60/ 60 / 24 -> days

javascript breaks it down to the millisecond, so 86,400,000 milliseconds in a day!