title: differences between ng-submit and ng-click
body: <p>In angularjs I'm wondering what the differences are between ng-submit and ng-click?  Specifically, pros and cons of each and when should you one or the other?  Thanks!
  <br><strong>**EDIT**</strong><br>
  I've looked in to this a bit more but I'm still wondering what (if any) the benefit is of using ng-submit?  Could you use an ng-click in place of all ng-submits?  Would this cause any problems? Thanks again!</p>