JavaScript is often used for implementing API calls and filtering arrays

I am trying to create a function that generates a table using if and indexOf within a forEach loop. I want the table to only display if the input value matches the first item in an array with the name "germany". Can anyone help me figure out what I'm doing wrong?

function showCountriesList(resp) {

 var url = 'https://restcountries.eu/rest/v2/name/';
 var createdTable = createNewTable();
 var countryName = $('#country-name').val();

 resp.forEach(function(item) {
  var row = document.createElement('tr');
  row.innerHTML = `
   <td><img style="width: 60px; height: 60px; object-fit: cover" src=${item.flag}></img></td>
   <td>${item.name}</td>
   <td>${item.capital}</td>
   <td>${item.alpha2Code}</td>
   <td>${item.timezones}</td>
  `;
   if (countryName === url.indexOf([item.name])) {
    createdTable.appendChild(row); }
 });

}

Answer №1

The details you provided are somewhat unclear for a definitive response.

Your if statement appears to be incorrect and will consistently result in false. It seems that the countryName variable contains a string, while the indexOf function returns a number. Also, your application of the indexOf function is not accurate since it expects a string rather than an array.

if (countryName === url.indexOf([item.name])) {
createdTable.appendChild(row); }

Based on my understanding, the mentioned code attempts to verify whether the value of countryName matches one in the URL.

I would recommend considering the use of the string method includes

if( url.includes(countryName))
      createdTable.appendChild(row);

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