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

@Pipe({name: 'titlecase', pure: true})
/** Transform to Title Case: uppercase the first letter of the words in a string.*/
export class TitleCasePipe implements PipeTransform {
  transform(input: string): string {
    return input.length === 0 ? '' :
      input.replace(/\w\S*/g,(txt => txt[0].toUpperCase()+txt.substr(1).toLowerCase()));
  }
}