title: _ceil() & _round() same as lodash JavaScript utility library in flutter
body: <p>everyone , i want to know anyone create function or package like <code>_ceil</code> or <code>_round()</code> same as lodash  JavaScript utility library ? i need it , thank in advance</p>
  <p>reference link : <a href="https://lodash.com/docs/4.17.15#ceil" rel="nofollow noreferrer">lodash</a></p>