web 2 JS

What is the correct syntax to declare a variable in JavaScript?

• int myVar;
• var myVar;
• let = myVar;
• dim myVar;

How do you write a comment in JavaScript?

• /* comment */
• // comment
• # comment

What is the output of: 2 + '2' in JavaScript?

• 4
• '4'
• NaN
• 22

Which keyword is used to define a constant in JavaScript?

• let
• var
• define
• const

What does NaN stand for?

• Not a Number
• No assigned Name
• Negative and Null
• New assigned Name

Which of the following comparisons is true?

• '5' == 5
• '5' === 5
• 5 = '5'
• 5 != 5

How do you define a function in JavaScript?

• fun myFunc()
• function myFunc() {}
• function = myFunc()
• def myFunc()

Which of these is a loop structure in JavaScript?

• for
• loop
• repeat
• foreach

What is the correct way to check if `x` is not equal to `y`?

• x !=== y
• x <> y
• x >< y
• x != y

Which symbol is used for strict equality in JavaScript?

• ==
• =
• ===
• !==