JSFiddle - React, Tailwind, and code Playground

JavaScript

var name = ["Илья", "Greg", "Алина"];
for (var i = 0; i < name.length; i++) {
    if (name.charCodeAt(i) < 1040 || name.charCodeAt(i) > 1103) {
        console.log(name.charAt(i) + "<br>");
    }
}