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Ilya Kantor 2019-04-30 20:19:40 +02:00
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1-js/05-data-types/02-number/article.md
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# Numbers
All numbers in JavaScript are stored in 64-bit format [IEEE-754](http://en.wikipedia.org/wiki/IEEE_754-1985), also known as "double precision".
All numbers in JavaScript are stored in 64-bit format [IEEE-754](https://en.wikipedia.org/wiki/IEEE_754-2008_revision), also known as "double precision floating point numbers".
Let's recap and expand upon what we currently know about them.
@ -177,7 +177,7 @@ There are two ways to do so:
## Imprecise calculations
Internally, a number is represented in 64-bit format [IEEE-754](http://en.wikipedia.org/wiki/IEEE_754-1985), so there are exactly 64 bits to store a number: 52 of them are used to store the digits, 11 of them store the position of the decimal point (they are zero for integer numbers), and 1 bit is for the sign.
Internally, a number is represented in 64-bit format [IEEE-754](https://en.wikipedia.org/wiki/IEEE_754-2008_revision), so there are exactly 64 bits to store a number: 52 of them are used to store the digits, 11 of them store the position of the decimal point (they are zero for integer numbers), and 1 bit is for the sign.
If a number is too big, it would overflow the 64-bit storage, potentially giving an infinity: