Within your Vue application, you may wish to calculate or manipulate data in a consistent or repetitive way or run tasks that require no output to your view.For example, if you wanted to calculate the sales tax on every price or retrieve some data from an API before assigning it to some variables.
Rather than creating computed functions for each time, we need to do this, Vue allows you to create functions or methods. These get declared in your application and can be accessed from anywhere - similar to the data or computed functions.
Add a method object to your Vue application and note the updates to the data object:
const app = new Vue({ el: '#app', data: { shirtPrice: 25, hatPrice: 10, currency: '$', salesTax: ...
