A simple TypeScript/JavaScript library for calculating dates. Given two dates, it can calculate the time period between them. Given a date and a time period, it can calculate the new date after adding the period to the date. It is also the name of the live demo.
build.sh requires typescript and typedoc in npm.
For building only the JavaScript library:
tsc src/date-calc.tsSee doc/index.html for API reference.
See demo/index.html for a demo.
The key is to call DateCalc.calculate(input1, input2). The returned string is the result of the calculation based on the two inputs.
The live demo accepts URL query strings. p1 and p2 are for the two inputs. You can bookmark a URL like this for anniversaries, birthdays, and so on:
https://zzpxyx.github.io/date-calc/index.html?p1=2017-09-21&p2=today
See file LICENSE.