Check if an Object has a Property from javascript

JavaScript
1

Tell us what’s happening:

Your code so far


let users = {
Alan: {
  age: 27,
  online: true
},
Jeff: {
  age: 32,
  online: true
},
Sarah: {
  age: 48,
  online: true
},
Ryan: {
  age: 19,
  online: true
}
};

function isEveryoneHere(obj) {
// Only change code below this line
return obj.hasOwnProperty('Alan','Jeff','Sarah','Ryan');


// Only change code above this line
}

console.log(isEveryoneHere(users));

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.104 Safari/537.36.

Challenge: Check if an Object has a Property

Link to the challenge:

2

Hello there.

Do you have a question?

If so, please edit your post to include it in the Tell us what’s happening section.

The more information you give us, the more likely we are to be able to help.

3

You have to check obj.hasOwnProperty for each property with a Logical AND (&&) operator in the user object.

4

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