How to subtract one year from a Date type in Angular 2?

Question

I want to subtract one year from a Date in my Angular component. This is my template:

<input type="date" [value]="date" (change)="date=$event.target.value" class="form-control"
/>

And the associated class:

export class appResultadosUtenteComponent {
    date: string;

    constructor() {
        this.date = new Date().toISOString().slice(0, 10);
    }
}

Solution

You could use Date#setFullYear to set the year to one less than Date#getFullYear:

const now = new Date();
now.setFullYear(now.getFullYear() - 1);

document.write(now.toISOString().slice(0,10));