country-coder.js

function getCountryName(event) {
 event.preventDefault();
 const countryOutput = document.querySelector('#country-output');
 let code = document.querySelector('#country-text').value;
 countryOutput.innerHTML = '';
 fetch(`https://restcountries.eu/rest/v2/ callingcode/${code}`)
   .then(result => result.json())
   .then(result => {
      result.map(country => 
        (countryOutput.innerHTML += 
         `<li>${country.name}</li>`));
    })
    .catch(() => {
      countryOutput.innerHTML = 
       `<h3>Country Not Found</h3>`;
    });
}