11. What is the purpose of the Math method toSource()?
12. How many static methods does a Date object have?
13. Which of the following are static methods in JavaScript?
14. If we have an object r and want to know if it is a Range object, we can write:
15. What is the property to access the first child of a node?
16. Which of the following is not an object?
17. What is the code snippet to change the class and let the stylesheet specify the details?
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