Unable to increment extremely large number by one in JavaScript

Question

I am trying to increase by one number 9223372036854775808::

var number = 9223372036854775808;
var plusOne = number + 1;

This should give 922337203685477580 9 , but instead it will turn out 9223372036854776000.

Why? More importantly, how can I fix this?

Answer 1

The largest representable number JavaScript in (2^53) - 1 , or written out 9007199254740991. The number you have is 9223372036854775808more than 1024 times that amount.

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Answer 2

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