J S QUIZZ

What does 'NaN' stand for in JavaScript?

• Not a Number
• Not a Null
• No Answer Necessary
• Null and Nil

Which company developed JavaScript?

• Mozilla
• Netscape
• Google
• Microsoft

Which of the following is NOT a reserved word in JavaScript?

• default
• finally
• throw
• undefined

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

• let
• const
• var
• constant

Which method is used to remove the last element from an array?

• shift()
• splice()
• pop()
• remove()

What will `typeof null` return in JavaScript?

• 'object'
• 'null'
• 'undefined'
• 'string'

What is the default value of an uninitialized variable in JavaScript?

• null
• undefined
• 0
• empty string

Which method can be used to convert a JSON string into a JavaScript object?

• JSON.parse()
• JSON.stringify()
• Object.convert()
• JSON.objectify()

Which keyword is used to create an asynchronous function in JavaScript?

• async
• await
• defer
• promise

What does 'this' keyword refer to in JavaScript?

• The global object
• The object that owns the function
• The function itself
• None of the above