2222222222222222222222-222222222222222222200 = 0 in js - Stack Overflow

Question

222222222222222222222-222222222222222222200 How to get the correct result when 0 is output in the console panel?

Answer 1

No need to count, there are 21 people in total;
The appearance of the entire list has been lowered by half a street due to this problem of the original poster;

Answer 2

The double type can only store 14 to 15 significant figures, and the excess can only be rounded (five is rounded according to certain rules)

Answer 3

Integers (without decimal point or exponent notation) can be up to 15 digits.
Save the two strings as an array
Add and subtract one bit one by one, subtract 1 for the next bit of a negative number
Then concatenate the arrays

Answer 4

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FAQ.
http://ecma-international.org...
Hope it can help you