What does NaN stand for in JavaScript?

Which of these is NOT a JavaScript data type?

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

How do you declare a JavaScript variable?

What is the result of 5 + '5' in JavaScript?

Which symbol is used for comments in Javascript?

How to write an IF statement in JavaScript?

How do you find the number with the highest value of x and y?

What is the correct JavaScript syntax to open a new window called 'w' ?

How do you call a function named 'myFunction'?