Date difference in hours - Angular 2

Question

How can I get difference in hours between two dates in angular2? I don\'t want to use external libs like moment.js.

Having, for example: incidentTi

Answer 1

parse the date type parameters to javascript's Date type.

let date1 = new Date(params.data.incidentTime).getTime();
let date2 = new Date(params.data.creationTime).getTime();
let time = date1 - date2;  //msec
let hoursDiff = time / (3600 * 1000);