JSFiddle - React, Tailwind, and code Playground

by Vitaliy

HTML

<form name="exchangeForm">
          <div class="otdaete">Вы отдаете &nbsp;&nbsp;&nbsp;  <span class="summa">Сумма</span></div>
          <div class="dd" id="chooseddwm" >
            <select name="webmoney"  size="1">
              <option value="wmz">WMZ</option>
              <option value="wmr">WMR</option>
              <option value="wme">WME</option>
            </select>
          </div>
    
    <span class="sumotdaete" id="sumwm"><input type="text" name="sumotdaete"></span>
 
 
 
 
    <div class="otdaete">Вы получаете &nbsp;&nbsp;&nbsp;  <span class="summa">Сумма</span></div>
      <div class="dd" id="chooseddcash">
            <select name="casheuro" style="">
              <option value="" selected=""></option>
              <option value="eur">EUR</option>
            </select>
          </div>
 
          <span class="sumpolu4" id="sumcash"><input type="text" name="sumpolu4"></span>
 
         </form> 
         <div id="selection"></div>

JavaScript

var ddwmselect=document.getElementById("chooseddwm");
var sumwm=document.getElementById("sumwm");
var ddcashselect=document.getElementById("chooseddcash");
var sumcash=document.getElementById("sumcash");
 
var selectWm = exchangeForm.webmoney; 
 
 
function changeOption(){
    var selection = document.getElementById("selection");
    var selectedOption = selectWm.options[selectWm.selectedIndex];
    selection.textContent = "Вы выбрали" + selectedOption.text;
}
 
 
selectWm.addEventListener("change", changeOption);