Function isInstanceOf

packages/core/src/utils/is.ts:189–195

(wat: any, base: any)

// TODO: fix in v11, convert any to unknown
// export function isInstanceOf<T>(wat: unknown, base: { new (...args: any[]): T }): wat is T {
export function isInstanceOf<T>(wat: any, base: any): wat is T {
  try {
    return wat instanceof base;
  } catch {
    return false;
  }
}

/**
 * Checks whether given value's type is a Vue ViewModel or a VNode.