JavaScript

To declare a JavaScript variable, you should NOT use?

• Let

• Var

• Const

• Int

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

• msg("Hello World");

• alertBox("Hello World");

• alert("Hello World");

• msgBox("Hello World");

How can a developer show a pop-up message to the user?

• alert

• prompt

• console.log

• <p> tag

How do I declare a new variable?

• var newVariable = 5;

• Variable int = new Variable();

• var 5 = myVariable;

• int var = 5;

The following code will:
x++;

• Add 1 to the previous value of x

• Add 1 to the previous value of y

• Subtract 1 from the previous value of x

• Give an error message

Which of the following is a symbol that must NOT be present in any JS Variable? Choose two

• A

• z

• ~

• %

What would this piece of code display?

let x = 5;

console.log(x != 8);

• false

• x!=8

• true

• 8

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

• function myFunction() {}

• def myFunction() {}

• function: myFunction() {}

• myFunction() => {}

What is the correct syntax to create an array in JavaScript?

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

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

• var colors = (1:'red', 2:'green', 3:'blue');

• var colors = {'red', 'green', 'blue'};

Which of the following is NOT a JavaScript data type?

• Number

• String

• Boolean

• Character