减少/增加日期角度7

Question

如何使用文档中的属性“ Date.now（）”来减少Angular 7中的当前日期或增加？

组件

today: number = Date.now()

HTML

<td>{{ today | date: 'dd/MM/yyyy '}}</td>

Answer 1

var today = new Date();
var dd = String(today.getDate()).padStart(2, '0');
var mm = String(today.getMonth() + 1).padStart(2, '0'); //January is 0!
//so increment by one get next date
mm=mm+1;
var yyyy = today.getFullYear();

todayvar = mm + '/' + dd + '/' + yyyy;
today: number = todayvar;

Answer 2

let date= new Date();
let diff = 1; //1 to increment and -1 to decrement
date.setDate(today.getDate() + diff);