Positive number pipe in angular 2+

Code:

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

@Pipe({
  name: 'positive'
})
export class PositivePipe implements PipeTransform {

  transform(value: number, args?: any): any {
    return Math.abs(value);
  }

}

How to use:

{{ someNumber| positive }}

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