How can I calculate the time between 2 Dates in typescript

Question

This works in Javascript

new Date()-new Date(\"2013-02-20T12:01:04.753Z\")

But in typescript I can\'t rest two new Dates

Date(\         


        

Answer 1

// TypeScript

const today = new Date();
const firstDayOfYear = new Date(today.getFullYear(), 0, 1);

// Explicitly convert Date to Number
const pastDaysOfYear = ( Number(today) - Number(firstDayOfYear) );