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

@Pipe({ name: 'titlecase', pure: false })
/** 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()));
    }
}