Module Quiz: The Building Blocks of a Program :Mobile Development and JavaScript (Meta iOS Developer Professional Certificate) Answers 2026

Question 1

In the following code snippet, type, model, and color are examples of what?

❌ Arrays
✅ Properties
❌ Strings
❌ Objects

Explanation:
Object ke andar jo key–value pairs hote hain unhe properties kehte hain.

Question 2

True or False: SyntaxError in JavaScript cannot be caught using the try-catch block.

✅ True
❌ False

Explanation:
SyntaxError compile-time par hota hai, isliye try-catch use catch nahi kar sakta.

Question 3

What index for the burger array would return a value of tomato sauce?

❌ 4
❌ 0
✅ 3
❌ 1

Explanation:
Arrays zero-indexed hote hain → "tomato sauce" index 3 par hai.

Question 4

In the following code, what data type does start: function() {} represent?

❌ Array
✅ Method
❌ Property
❌ Object

Explanation:
Object ke andar function ko method kehte hain.

Question 5

When the error is thrown, the code will do what?

❌ Print the type of error to the console.
❌ Execute the code inside the throw statement.
❌ Print new Error to the console.
✅ Execute the code inside the catch statement.

Question 6

What error gets thrown when using variables that haven’t been declared?

❌ SyntaxError
❌ RangeError
✅ ReferenceError
❌ TypeError

Question 7

What will be the output of the following code?

(10).toString(100);

❌ .1
❌ undefined
❌ SyntaxError
✅ RangeError

Explanation:
toString() radix sirf 2 se 36 ke beech valid hota hai.

Question 8

The statement below evaluates to which of the following?

❌ error
❌ undefined
❌ value
✅ null

Question 9

What will be the output of the following code?

var str = "Hello"; str.match("jello");

❌ undefined
❌ SyntaxError
❌ “”
✅ null

Explanation:
match na milne par null return hota hai.

Question 10

The following code block will return what value?

❌ err
❌ ab
❌ There was an error
✅ undefined

Explanation:
Function me koi return statement nahi hai, isliye return value undefined hoti hai.

🧾 Summary Table