Iterate over property in constructor

Please check my code below, its not working.

for(let property in Dog){

Link of the challenge is given below.

Try typeof Dog. This must answer your question

@snigo Can you please elaborate ? I don’t get it.

Constructor is shorten from Constructor Function (any function that creates objects). for / in loop is designed to iterate through the properties of an object, not a function. You need to create an object first const myDog = new Dog('whatever goes here'); and then iterate through myDog.