JSFiddle - React, Tailwind, and code Playground
HTML
<select id='mySelect'><select>
$.each(countries, function(i, e){
$('#mySelect').append("<option value='" + e.cca2 +"'>" + e.name + "</option>");
})
JavaScript
var countries = [{
"name": "Afghanistan",
"cca2": "AF",
"calling-code": "93"
},
//{"name":"Ă…land Islands","cca2":"AX","calling-code":"358"},
{
"name": "Albania",
"cca2": "AL",
"calling-code": "355"
}, {
"name": "Algeria",
"cca2": "DZ",
"calling-code": "213"
}, {
"name": "American Samoa",
"cca2": "AS",
"calling-code": "1684"
}, {
"name": "Andorra",
"cca2": "AD",
"calling-code": "376"
}, {
"name": "Angola",
"cca2": "AO",
"calling-code": "244"
}, {
"name": "Anguilla",
"cca2": "AI",
"calling-code": "1264"
}, {
"name": "Antigua and Barbuda",
"cca2": "AG",
"calling-code": "1268"
}];
$.each(countries, function(i, e){
$('#mySelect').append("<option value='" + e.cca2 +"'>" + e.name + "</option>");
})