angular - How to go back last page

Question

Is there a smart way to go back last page in Angular 2?

Something like

this._router.navigate(LASTPAGE);

For example, page C has a Go Back button,

• Page A -> Page C, click it, back to page A.

• Page B -> Page C, click it, back to page B.

Does router have this history information?

Answer 1

Actually you can take advantage of the built-in Location service, which owns a "Back" API.

Here (in TypeScript):

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

@Component({
  // component's declarations here
})
class SomeComponent {

  constructor(private _location: Location) 
  {}

  backClicked() {
    this._location.back();
  }
}

Edit: As mentioned by @charith.arumapperuma Location should be imported from @angular/common so the import {Location} from '@angular/common'; line is important.