32 - InstanceOfClass

[jsartisan]

index.js

export function instanceOfClass(obj, targetClass) {
  if (!obj || typeof obj !== 'object') return false
  if (!targetClass.prototype) throw Error

  if (Object.getPrototypeOf(obj) === targetClass.prototype) {
    return true
  } else {
    return instanceOfClass(Object.getPrototypeOf(obj), targetClass)
  }
}