Instructions
- 1. Your final score will reflect your grasp of the concepts—approach each question with precision.
- 2. Thoroughly review each solution before proceeding to ensure full understanding.
- 3. Final results will be available after submission to provide insights into areas for further improvement.
- 4. Maintain academic integrity—plagiarism undermines learning and professional growth.
- 5. Once submitted, responses are final, so ensure you’re confident in your answers.
- 6. These challenges are designed to test practical knowledge; apply your skills as you would in real-world scenarios.
All Problems
Question
Action
How do you create an empty object in JavaScript?
How do you add a new property to a JavaScript object?
Which of the following is NOT a valid way to access an object’s property?
What is the output of the following code?
What does the following code return?
How do you check if a property exists in a JavaScript object?
What is the output of the following code?
Which method is used to get an array of the keys of an object?
What is the correct syntax for creating a new object using a constructor function?
Which statement about JavaScript objects is correct?
How do you create an empty object in JavaScript?
How do you add a new property to a JavaScript object?
Which of the following is NOT a valid way to access an object’s property?
What is the output of the following code?
var obj = { name: "John" }; console.log(obj.name);
What does the following code return?
var obj = { name: "John", age: 30 }; delete obj.age; console.log(obj.age);
How do you check if a property exists in a JavaScript object?
What is the output of the following code?
var obj = { name: "Alice" }; console.log("name" in obj);