Since you have ng-click anyways, you could also use <button type="button">, even inside the form tag. The default behaviour of the button element is type="submit", which is what you want to prevent. So, no javascript needed at all!
Since you have ng-click anyways, you could also use <button type="button">, even inside the form tag. The default behaviour of the button element is type="submit", which is what you want to prevent. So, no javascript needed at all!