Basic JavaScript - Testing Objects for Properties

JavaScript
1

Tell us what’s happening:
Describe your issue in detail here.

Your code so far

function checkObj(obj, checkProp) {
  // Only change code below this line
  return checkProp.hasOwnProperty(obj);

  
  // Only change code above this line
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Challenge: Basic JavaScript - Testing Objects for Properties

Link to the challenge:

2

hi everyone!

please am getting more confused as my code can’t pass. Can anyone give me more light here?

my code:

function checkObj(obj, checkProp) {
  // Only change code below this line
  return checkProp.hasOwnProperty(obj);
3

Have a look at the example in the challenge and compare it to your code - what is the hasOwnProperty applied to?

4

You should have some kind of if-else logic to return property's value or Not Found

5

honestly speaking am lost here totally. Don’t know what to anymore here.

Am getting frustrated…I need more explanation, please

6

It is normal to feel so in self-learning path. I would grab a coffee/ tea or a biscuit, or even take a nap.

Btw, have you took a look the Get Help → Get a Hint ?. I learnt a lot from there.

1 Like
7

Did you solve this? Your parameters are back to front in your return statement.

function checkObj(obj, checkProp) {
  // Only change code below this line
  return checkProp.hasOwnProperty(obj);

Also, this function would only return true or false, where you are supposed to return the property’s value (if it exists).
However, this challenge can be solved with a single return statement, using the logical OR operator…

8

I just did it correctly.

if (obj.hasOwnProperty(checkProp)) {
    return obj[checkProp];
  } else {
    return "Not Found";
  }
1 Like
9

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