JavaScript Test

9 Questions | Total Attempts: 21

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JavaScript Quizzes & Trivia

JavaScript Quiz: If you are uncertain about an answer please enter "UNKNOWN".


Questions and Answers
  • 1. 
    What is the difference between the window.onload and the onDocumantReady methods?
  • 2. 
    What is the difference between the == and the === operators?
  • 3. 
    What does "2" + 4 + 8 evaluate to?
  • 4. 
    What does 2 + 4 + "5" evaluate to?
  • 5. 
    What is the difference between null and undefined values?
  • 6. 
    How do you change the class/style on any element?
  • 7. 
    What are JavaScript closures and when would you use them?
  • 8. 
    What is JavaScript namespacing and how is it used?
  • 9. 
    What datatypes are supported in JavaScript?