birth-date-str.js

import computed from 'ember-computed';

export function birthDateStrFor(key) {
  return computed(key, function() {
    let user = this.get(key);
    let name = user.get('name');
    let dob  = user.get('dob').format('DD/MM/YYYY');
    return `${name}'s birthday is on ${dob}`;
  });
}