Pull Text from Drop Down Field to Single Line Text Box - SharePoint / Nintex Forms

Question

I am trying to pull in the text from a Drop Down field on my Nintex Form into a single line text box within the same Nintex Form. Is there a custom JavaScript code that can be written to accomplish this?

Here is what is a visual:

Answer 1

You have set the JS ID(Client ID in JavaScript variable) for the dropdown and textbox field, then use the code like below to achieve it.

NWF$(document).ready(function(){
    NWF$('#' + JSID1).change(function(){
        var selection = NWF$('#'+JSID1);
        NWF$('#' + JSID2).val(selection.val());
    });  
});

The following articles for your reference.

Button to Set Field Value (JS)

How to retrieve the values from the drop down control