get the constructor of a class's instance.
class K { constructor(value) { this.value = value } }const a = new K(1)const b = new (constructorOf(a))(2) // equivalent to `const b = new K(2)` Copy
class K { constructor(value) { this.value = value } }const a = new K(1)const b = new (constructorOf(a))(2) // equivalent to `const b = new K(2)`
get the constructor of a class's instance.
Example