Pipe aliases

[SteveVanOpstal]

In recent events the SnakeCasePipe is renamed to UnderscorePipe (a103dd8).

In my opinion the name SnakeCasePipe makes a lot of sense.
@rafaelss95 apparently thinks UnderscorePipe to be more suitable.

But looking at it from the user perspective both are equally correct names.
I suggest we allow multiple names for the same pipes by creating aliases.

Alias suggestions

capitalize -- ucFirst
snakeCase -- underscore
camelCase -- camelize

[a8m]

I like it.
Also, there are several more aliases in angular-filter that I like to add:

• contains -- some
• unique -- uniq
• and all the other booleans filters

[rafaelss95]

I agree with these aliases, but... is it allowed to use multiple names in the @Pipe decorator?

[SteveVanOpstal]

Something in the form of the following should be possible (untested code):

import {Pipe, PipeTransform} from '@angular/core';

@Pipe({name: 'somePipe'})
export class SomePipe implements PipeTransform {
  transform() {}
}

@Pipe({name: 'someOtherPipe'})
export class SomeOtherPipe implements PipeTransform {
  somePipe = new SomePipe();
  transform() {
    return somePipe.transform();
  }
}