ngx-admin/docs/app/shared/pipes/capitalize.pipe.ts

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

@Pipe({ name: 'ngxCapitalize' })
export class CapitalizePipe implements PipeTransform {

  transform(input: string): string {
    return input && input.length
      ? (input.charAt(0).toUpperCase() + input.slice(1).toLowerCase())
      : input;
  }
}