Function patchEvent

web/main.js:7200–7218

(el, rawName, prevValue, nextValue, instance = null)

}
const veiKey = /* @__PURE__ */ Symbol("_vei");
function patchEvent(el, rawName, prevValue, nextValue, instance = null) {
  const invokers = el[veiKey] || (el[veiKey] = {});
  const existingInvoker = invokers[rawName];
  if (nextValue && existingInvoker) {
    existingInvoker.value = nextValue;
  } else {
    const [name, options] = parseName(rawName);
    if (nextValue) {
      const invoker = invokers[rawName] = createInvoker(
        nextValue,
        instance
      );
      addEventListener(el, name, invoker, options);
    } else if (existingInvoker) {
      removeEventListener(el, name, existingInvoker, options);
      invokers[rawName] = void 0;
    }
  }
}
const optionsModifierRE = /(?:Once|Passive|Capture)$/;
function parseName(name) {
  let options;