let x = -75;
let b = -7.105427357601002e-15;
x = x + b;
alert(x);
Alert prints -75. Why? What is the solution to avoid this error?
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3You've basically said -75 + 0. That number is so small it's essentially 0. Do you actually need precision to 15 decimal places? – Carcigenicate Oct 30 '19 at 19:09
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1The number you are adding is too small, JavaScript can't calculate it with its vanilla libraries. Search for some BigDecimal library. – Arthur Lyrio de Oliveira Oct 30 '19 at 19:11
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Possible duplicate of [Dealing with float precision in Javascript](https://stackoverflow.com/questions/11695618/dealing-with-float-precision-in-javascript) – devlin carnate Oct 30 '19 at 19:26