Ques 2. How do you convert numbers between different bases in JavaScript?
Use the parseInt() function, that takes a string as the first parameter, and the base as a second parameter. So to convert hexadecimal 3F to decimal, use parseInt ("3F", 16);
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Ques 3. What does isNaN function do?
Return true if the argument is not a number.
Example:
isNaN(123) //returns false
isNaN('Hello John') //returns true
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Ques 4. What looping structures are there in JavaScript?
Looping structures are:
for
while
do-while
foreach
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Ques 5. What boolean operators does JavaScript support?