JSFiddle - React, Tailwind, and code Playground
HTML
<select class="select">
<option value="EUR"> EUR - Euro </option>
<option value="USD"> USD - United States Dollar </option>
<option value="AED"> AED - United Arab Emirates Dirham </option>
<option value="ARS"> ARS - Argentine Peso </option>
</select>
JavaScript
$('.select option').each(function(){
var currency = $(this).text();
currency = currency.slice(0,4);
$(this).text(currency)
})