Method deleteProperty

web/main.js:1161–1169

(target, key)

    return result;
  }
  deleteProperty(target, key) {
    const hadKey = hasOwn(target, key);
    target[key];
    const result = Reflect.deleteProperty(target, key);
    if (result && hadKey) {
      trigger(target, "delete", key, void 0);
    }
    return result;
  }
  has(target, key) {
    const result = Reflect.has(target, key);
    if (!isSymbol(key) || !builtInSymbols.has(key)) {