Trigger click event of another element in angular?

Trigger click event of another element in angular?

I have an input box and Its bound with datepicker. In my view, there is
small calendar icon besides this input box. I want to trigger click event
of an input box when user clicks on this calendar icon. I have done this
using directive which I have applied to calendar icon. But its almost like
jQuery. So is there any different way to achieve this? If my approach is
wrong then please guide me to the right direction. I am new to angular and
I have read some articles where I read that avoid use of jQuery. Thanks