chapter 3, exercise 3: example code shows numbers 0-19 instead 1-20.

[rubiesonthesky]

The exercise description is as follows

Move to display a drop down with quantity selection from 1 to 20 (generated via ngFor).

The example code gives you numbers 0-19.
component

this.quantities = []; for (let i = 1; i < 21; i++) { this.quantities.push(i); }

It could be fixed as below or some way similar. :)

this.quantities = []; for (let i = 1; i < 21; i++) { this.quantities.push(i); }