How to get value of selected radio button?

Question

I want to get the selected value from a group of radio buttons.

Here\'s my HTML:

Answer 1

   var rates=document.getElementsByName("rate");
            for (i = 0; i < rates.length; i++) {
            if (rates[i].checked) {
              console.log(rates[i].value);
              rate=rates[i].value;
              document.getElementById("rate").innerHTML = rate;
              alert(rate);
              
            }
          }

        

           Fixed Rate
           Variable Rate
           Multi Rate