app.js

const URL = "https://www.google.com/search?q=";
const FEELING_LUCKY = "&btnI=&sourceid=navclient&gfns=1";

const inputDetails = document.querySelector("input");
const lucky = document.querySelector("button[data-lucky]");

lucky.addEventListener("click", () => {
  console.log("here", inputDetails.value);
  if (!inputDetails.value) return;
  document.location = `${URL}${inputDetails.value}${FEELING_LUCKY}`;
});

function onSubmit(event) {
  event.preventDefault();
  const { textSearch } = Object.fromEntries(new FormData(event.target));
  console.log("text", textSearch);

  if (!inputDetails.value) return;
  document.location = `${URL}${textSearch}`;
}