emoji-mart-lazyload/src/polyfills/inherits.js

const _Object = Object

export default function inherits(subClass, superClass) {
  if (typeof superClass !== 'function' && superClass !== null) {
    throw new TypeError(
      'Super expression must either be null or a function, not ' +
        typeof superClass,
    )
  }

  subClass.prototype = _Object.create(superClass && superClass.prototype, {
    constructor: {
      value: subClass,
      enumerable: false,
      writable: true,
      configurable: true,
    },
  })
  if (superClass) {
    _Object.setPrototypeOf
      ? _Object.setPrototypeOf(subClass, superClass)
      : (subClass.__proto__ = superClass)
  }
}