JSFiddle - React, Tailwind, and code Playground

HTML

<div id='currencySymbol'>
        $
    </div>

<select onchange='symbolChange(this);'>
                        	<option name='WMZ' >WMZ</option>
							<option name='WMR' >WMR</option>
                        	<option name='WME' >WME</option>
							<option name='WMU' >WMU</option>
							<option name='WMB' >WMB</option>
				</select>

JavaScript

function symbolChange(obj) {
    var val = obj.value;
    switch (val) {
        case 'WMZ':
            document.getElementById("currencySymbol").innerHTML= "$";
            break;
        case 'WMR':
            document.getElementById("currencySymbol").innerHTML= "Р";
            break;
        case 'WME':
            document.getElementById("currencySymbol").innerHTML= "€";
            break;
        case 'WMU':
            document.getElementById("currencySymbol").innerHTML= "г";
            break;
        case 'WMB':
            document.getElementById("currencySymbol").innerHTML= "Br";
            break;
        default :
            document.getElementById("currencySymbol").innerHTML= "$";
            break;
    }
}