Testing Objects for properties?

Programming JavaScript
1

so firstly i’d say for a beginner this question was way too confusing i get what it was try to say but like i didn’t even know that you could pass the method .hasOwnProperty within the argument or parameter or whatever its called.

Now everything pass except the last part “gift” should return Not Found. i already put in the return statement and everything else pass why is it not passing for the last one??

  **Your code so far**


function checkObj(obj, checkProp) {
// Only change code below this line
obj={
  gift: "pony",
  pet: "kitten",
  bed: "sleigh",
  city: "Seattle"
};
if(obj.hasOwnProperty(checkProp)){
  return obj[checkProp];
}else
return "Not Found"; 
// Only change code above this line
}


  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36.

Challenge: Testing Objects for Properties

Link to the challenge:

2

You should not be redefining the obj inside of your function.

3

wait it worked?? wait what how come? i didn’t see object being created why then would it pass the test that require it to acess gifts value or pets value?? So a obj as within a function’s parameter is the same as creating a object?

4

Yeah, when you pass in an object with as the function parameter, it is used by the function.

5

Oh so the questions assume that the values for the object eg . gift: “pony” etc are already created outside of the function so we just have to make a function to find out the properties of the said obj…is that correct?

6

Exactly. We need our functions to execute the same logic for many different objects, and we do that my passing those objects in as function arguments.

7

it says

checkObj({pet: "kitten", bed: "sleigh"}, "gift") should return "Not Found" .

in the function call an object is passed in as first argument, {pet: "kitten", bed: "sleigh"}, and a string as second argument, "gift"

the object already exists outside the function