Is it possible to use a pipe in the code?

Question

When I use my custom pipe in a template, it is like this:

{{user|userName}}

And it works well.

Is it possible to use a pipe in the code?

I try to use it like this:

let name = `${user|userName}`;

But it shows

userName is not defined

My alternative way is using db.collection.findOne() manually in the code. But is there any smart way?

Answer 1

This is the way you can use @Pipe in a component:

import { YourPipeComponentName } from '@angular/...';

class YourService {

  constructor(private pipe: YourPipeComponentName) {}

  YourFunction(value) {
    this.pipe.transform(value, 'pipeFilter');
  }
}

Answer 2

@Siva is correct. And thanks!

So the way to use the pipe in the component is like this:

let name = new UserNamePipe().transform(user);

Link to another similar question.