Description

Coalition of Technology and Business.

Question 16

Coalition of Information Technology Business. Which JavaScript function is used to convert a string into an integer?

• toInt()
• convertInt()
• parseInt()
• stringToInt()

Question 17

In JavaScript, what does NaN stand for?

• Not a Null
• Not a Number
• Negative and Null
• None and Null

Question 18

Which of the following is the correct JavaScript statement to display text on a webpage?

• response.write(“Hello how are you?”)
• “Hello how are you?”
• document.write(“Hello how are you?”)
• (“Hello how are you?”)

Question 19

What happens if you define a function incorrectly in JavaScript (e.g., missing parentheses or using invalid syntax)?

• ✅ It will result in a syntax error
• The function will continue to execute
• It will result in no syntax errors
• All of the above  Coalition of Technology and Business.

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Question 20

Which type of loop is NOT a standard loop structure in JavaScript?

• for loop
• ✅ repeat loop
• while loop    Coalition of Technology and Business.
• do…while loop

Question 21

Which method is used in JavaScript to access an HTML element by its ID?

• Use the document.putElementById(id) method
• ✅ Use the document.getElementById(id) method  Coalition of Technology and Business
• Use the document.retrieveElementById(id) method
• Use the document.accessElementById(id) method

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Question 22

Which of the following is the correct way to link an external JavaScript file in HTML?

• ✅ <script src=”main.js”>
• <script href=”main.js”>
• <script name=”main.js”>
• <script value=”main.js”>

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Question 23

Which of the following is the correct definition of a boolean?

• ✅ A logical data type which makes decisions. It supports only two possible values true or false
• A logical data type which makes functions. It supports only one possible value const boolean = () => {}
• A data type used to store functions, and arrays using scientific notation
• A whole number without a decimal point

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Question 24

Which of the following is the correct when to use floating-point numbers in JavaScript?

• A data type used to store functions, and arrays using scientific notation
• A whole number without a decimal point
• A general data type used to store integers, floating-point numbers (decimals), and numbers using scientific notation
• ✅ Used whenever you’re working with data that requires numbers with a fractional component

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Question 26

Which loop in JavaScript always executes the code block at least once before checking the condition?

• for
• while
• ✅ do…while
• forEach

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