'How to get selected value from html dropdown in express?

I'm using a html dropdown in my project . How do i get the select value in the express server?

<div class="mb-3">
            <label for="kk" class="form-label">Designation</label>
            <select class="form-select" name="picker" aria-label="Default select example" id="kk">
                <option selected>Select</option>
                <option value="1">Proffesor</option>
                <option value="2">Associate Proffessor</option>
                <option value="3">Lab Assistant</option>
            </select>
        </div>

In my post request handling method i have used this code to get the value :

const f = req.body.picker;

what this gives me is the index of the selected values in the dropdown like 0,1,2 etc instead of actual values like professor, associate professor,lab assistant .



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