Copy and paste in your Replit app, done right

var IN_APP = navigator.userAgent.indexOf("WebViewGold") !== -1; // your custom user agent token

// Copy: call directly from the click handler
function copyText(text) {
  if (navigator.clipboard && window.isSecureContext) {
    return navigator.clipboard.writeText(text).catch(function () { legacyCopy(text); });
  }
  legacyCopy(text);
  return Promise.resolve();
}
function legacyCopy(text) {
  var ta = document.createElement("textarea");
  ta.value = text;
  ta.setAttribute("readonly", "");
  ta.style.position = "fixed";
  ta.style.opacity = "0";
  document.body.appendChild(ta);
  ta.select();
  document.execCommand("copy");
  document.body.removeChild(ta);
}

// Paste: read the device clipboard (app only, on a tap)
function pasteInto(input) {
  if (!IN_APP) { input.focus(); return; } // browser: long-press and paste
  window.clipboarddata = undefined;
  window.location.href = "getclipboard://";
  var started = Date.now();
  (function check() {
    if (typeof window.clipboarddata !== "undefined") {
      input.value = String(window.clipboarddata || "").trim();
    } else if (Date.now() - started < 3000) {
      setTimeout(check, 100);
    }
  })();
}