How to create autocomplete on click on textbox in magento2.3.5

Question

I want to create a dynamic textbox and using the id attribute to use autocomplete functionality in this. I have Developed a dynamic id for each textbox on click of add Item button and my id is provided like this "textbox" + counter and I want to marge text box counter as textbox1. So can anyone having an idea about this then please share it with me.

'textbox' + counter as textbox1

Thank you in Advance.