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Science Library Quiz

Objects in JavaScript

Instructions: answer the questions, check them carefully, and when you are sure they are all right, press submit. The number of correct answers will be displayed.

Question 1: What is the output of: parseInt("+45*2"); ?


Question 2: What is the output of a) Number() and b) parseInt()?




Question 3: What is the output of: parseInt("0xB"); ?




Question 4: What is the output of:
a) isNaN(NaN); ?
b) isNAN(10); ?
c) isNAN(true); ?




Question 5: What is the output of:
a) Number('Hello Arthur');
b) Number('');




Question 6: What is the output of:
a) Number('0012');
b) Number(true);




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