16 questions for “Math & BigInt”

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JavaScript Numbers, Math & BigInt 10

Information Technology

16 questions in 1 technology

#	Question	Technology	Topic	Level
1	What are some commonly used Math object methods? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Beginner
2	What is BigInt and how do you create one? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Intermediate
3	Why is BigInt generally the wrong tool for representing monetary amounts with decimals, like $19.99? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Advanced
4	How do bitwise operators like >>>, &, and \| behave differently on BigInt versus Number? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Advanced
5	Why does 0.1 + 0.2 not equal 0.3 exactly in JavaScript? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Beginner
6	What does Number.isInteger() check, and how is it different from typeof? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Beginner
7	What is Number.MAX_SAFE_INTEGER and what breaks beyond it? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Intermediate
8	Why does 9007199254740993n + 1 throw a TypeError, but 9007199254740993n + 1n does not? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Intermediate
9	Why is Number.parseFloat('123abc') valid but Number('123abc') returns NaN? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Advanced
10	How do you correctly compare two floating-point numbers for 'close enough' equality? JavaScript › Numbers, Math & BigInt	JavaScript	Numbers, Math & BigInt	Advanced

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