mall-app/src/app/profile/profile.page.ts

import { Component, OnInit } from '@angular/core';
import { Location } from '@angular/common';

@Component({
    selector: 'app-profile',
    templateUrl: './profile.page.html',
    styleUrls: ['./profile.page.scss'],
})
export class ProfilePage implements OnInit {
    selected_tab: string = 'MY ORDERS';

    constructor(
        private location: Location
    ) { }

    ngOnInit() {
    }

    back() {
        this.location.back();
    }

}