I have been trying to do this for several days now. I have read across tons of other similar questions, but nothing helped me yet. What I am trying to do is to simulate the exact event, like organic keypress to text input field that user can make. So, it would set the "value" of the input to new value, to work exactly like real keypress. 
It need to work on 1 browser at least, be it Chrome, Mozzila or IE, it totally does not matter. 
I need to type letter by letter in an input, but if it works for 1 letter, it will certainly work for couple of them. 

Please note: It can't be setting the value of input. Only artificial keypress event can help me.