An interface that is implemented by pipes in order to perform a transformation. Angular invokes the transform method with the value of a binding as the first argument, and any parameters as the second argument in list form.
API
interface PipeTransform {
transform(value: any, ...args: any[]): any;
}
transform
any
@paramvalue
any
@paramargs
any[]
@returns
any
Usage Notes
In the following example, TruncatePipe returns the shortened value with an added ellipses.
Invoking {{ 'It was the best of times' | truncate }} in a template will produce It was....
In the following example, TruncatePipe takes parameters that sets the truncated length and the string to append with.
Invoking {{ 'It was the best of times' | truncate:4:'....' }} in a template will produce It was the best.....