What is Pipe in Angular?

What is Pipe in Angular?

In Angular, pipes are a feature that allows you to transform data in your template before it is displayed to the user. Pipes are implemented as classes decorated with the @Pipe decorator, and they can be used in your templates to format, filter, or transform data. Pipes can be used to perform a wide range of operations on data, including:

• Formatting dates, numbers, and currencies.
• Filtering lists of items.
• Sorting lists of items.
• Converting text to uppercase or lowercase.
• Creating custom transformations.

To use a pipe in your template, you simply add the pipe name to the interpolation expression, separated by the | character. For example, to format a date using the built-in DatePipe, you would use the following code in your template:

{{ myDate | date }}

In this example, myDate is a variable containing a date, and the date pipe formats the date using the default date format.

You can also chain multiple pipes together to perform complex transformations. For example, to format a date and convert it to uppercase, you could use the following code:

{{ myDate | date | uppercase }}

In this example, the date pipe formats the date, and the uppercase pipe converts the resulting string to uppercase.

Overall, pipes are a powerful feature in Angular that allows you to transform data in your templates in a flexible and efficient way. Angular comes with several built-in pipes, and you can also create custom pipes to suit your specific needs.