JavaScript and interactive web pages

Question 1 of 10

Which loop prints 1 to 5 in JavaScript?

A. for i in range(1, 6): print(i) B. loop 1 to 5 C. for (let i = 1; i <= 5; i++) { console.log(i); } D. repeat 5 { print(i) }

Question 2 of 10

An event in JavaScript is

A. a type of loop B. a file C. something that happens on the page, such as a click or key press D. a CSS rule

Question 3 of 10

JavaScript arrays are written with

A. round brackets only B. angle brackets C. square brackets, e.g. [1, 2, 3] D. curly braces only

Question 4 of 10

Which code runs a function called check when a button is clicked?

A. button.click = check() B. on.click(check) C. check.button() D. button.addEventListener("click", check)

Question 5 of 10

JavaScript is mainly used on websites to

A. structure content B. store the whole website C. make pages interactive D. design hardware

Question 6 of 10

Which shows a message in a pop-up box?

A. print("Hello") B. echo "Hello" C. alert("Hello") D. msg("Hello")

Question 7 of 10

Explain what an event is and give four examples of events a web page can respond to.

Question 8 of 10

Write HTML and JavaScript for a button that, when clicked, shows "Welcome to Otisam" in a paragraph with id "msg".

Question 9 of 10

Client-side validation alone is enough to keep a website secure.

A. True B. False

Question 10 of 10

JavaScript runs in the web browser.

A. True B. False

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New set of questions

Questions written by OtisamLMS in the style of the WASSCE. They are not WAEC past questions.

Past questions, worked solutions and curriculum-mapped study material for JHS and SHS students and teachers in Ghana.

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