Home / JavaScript / Question
MCQ
Which operator is used to check if an object has a property?
JavaScript
A in
B hasOwnProperty
C typeof
D Both a and b
Explanation

The 'in' operator and hasOwnProperty() both check for property existence.

Related MCQs

What is the correct way to write a comment in JavaScript?
JavaScript View
What is the output of `console.log(1 && 0)`?
JavaScript View
Which operator is used for exponentiation in JavaScript?
JavaScript View
What is the output of `console.log(2 + 3 * 4)`?
JavaScript View
Which property of the document object is used to get the HTML content?
JavaScript View
Which method converts a JavaScript object to a JSON string?
JavaScript View