@antv/util/src/lodash/is-prototype.ts

> AntV 底层依赖的工具库，不建议在自己业务中使用。

const objectProto = Object.prototype;

const isPrototype = function (value: any): boolean {
  const Ctor = value && value.constructor;
  const proto = (typeof Ctor === 'function' && Ctor.prototype) || objectProto;
  return value === proto;
};

export default isPrototype;