Basic JavaScript Programming Quiz

Which of the following is a correct way to declare a variable in JavaScript?

• var myVariable;

• variable myVariable;

• v myVariable;

• declare myVariable;

What is the correct syntax for referring to an external script called "script.js"?

• <script src="script.js"></script>

• <script link="script.js"></script>

• <script ref="script.js"></script>

• <script href="script.js"></script>

How do you write "Hello World" in an alert box?

• alert("Hello World");

• msg("Hello World");

• alertBox("Hello World");

• msgBox("Hello World");

How do you create a function in JavaScript?

• function myFunction() {}

• create myFunction() {}

• function:myFunction() {}

• def myFunction() {}

How do you call a function named "myFunction"?

• call myFunction();

• myFunction();

• call function myFunction();

• execute myFunction();

How do you write an IF statement in JavaScript?

• if i = 5 then

• if i == 5 then

• if (i == 5)

• if i = 5

How does a WHILE loop start in JavaScript?

• while (true){}

• while true do

• while i < 6:

• while true:

What is the correct way to write a JavaScript array?

• var colors = "red", "green", "blue";

• var colors = {1:"red", 2:"green", 3:"blue"};

• var colors = ["red", "green", "blue"];

• var colors = "red", "green", "blue";

How do you round the number 7.25 to the nearest integer?

• Math.round(7.25)

• Math.rnd(7.25)

• round(7.25)

• rnd(7.25)

What is the correct way to declare a constant in JavaScript?

• const myConstant = 10;

• constant myConstant = 10;

• let myConstant = 10;

• var myConstant = 10;