# Custom Pipes

Pipes to transform strings, currency amounts, dates, and other data for display. Pipes are simple functions in template expressions to accept an input value and return a transformed value. Pipes are helpful because you can use them throughout your application while only declaring each pipe once. For example, you would use a pipe to show the date as April 15, 1988, rather than the raw string format.

Visit the following resources to learn more:

- [@official@Create a custom pipe - angular.io](https://angular.io/guide/pipes-custom-data-trans)
- [@video@Create a custom pipe video for Beginners](https://www.youtube.com/watch?v=P2587FN4Y0w)