parseDuration.ts

const types: {
  [key: string]: string;
} = {
  y: 'years',
  mo: 'months',
  w: 'weeks',
  d: 'days',
  h: 'hours',
  m: 'minutes',
  s: 'seconds',
};

export const parseDuration = (timePeriod: string) => {
  const result = /^(?<_value>[\d]+)(?<_type>[\w]+)$/.exec(timePeriod)!;

  const { _value, _type } = result!.groups!;

  const type = types[_type];
  const value = Number(_value);
  
  return `${value} ${type}`
};