JSFiddle - React, Tailwind, and code Playground
by Vadim
HTML
<input type="text" id="inp">
<label for="inp"></label>
JavaScript
let x = ["Moscow", "London", "Paris", "New-York", "Seul", "Bagdad"],
inp = document.getElementById("inp"),
lab = document.querySelector("label");
inp.addEventListener("input", (event) => {
debugger
let serching_city = x.find((city) => city.includes(inp.value))
lab.innerHTML = serching_city
});