JavaScript large number library?

Question

Is there a library available in javascript to handle large numbers with accuracy (sort of like what oracle does by storing the number as a string) and allows for operations like add/subtract/multiply/divide/mod/etc ?

Basically I need to add large numbers like 1234567890.1234567890 + 1234567890.987654321 and get a precise result.

score 9 · Accepted Answer · answered Nov 08 '12 at 23:45

9

As its author, I recommend big.js, 'a small, fast Javascript library for arbitrary-precision arithmetic with decimal numbers'.

answered Nov 08 '12 at 23:45

MikeM

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It's been years, but big.js is nice. The project I was working on back then is long gone though. – Dmitriy Likhten Nov 13 '12 at 15:34

score 2 · Answer 2 · answered Nov 12 '09 at 22:03

2

There's a few BigInt implementations out there, for example:

Layering fixed-point conversion on top of one of them should be pretty easy.

There is also a new decimal type in some implementations, based on a new definition from IEEE 754r — I believe it was part of the (now abandoned) ECMAScript 4 spec, and is carried forward by ECMAScript 3.1/5 and JavaScript 1.9, but I could be wrong on this point.

answered Nov 12 '09 at 22:03

ephemient

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Native decimal support was cut from the ECMAScript 5 spec – peller Nov 13 '09 at 03:51
I guess this will have to do for now. A shame JS does not have a built-in mechanism for exact math. – Dmitriy Likhten Nov 14 '09 at 17:34

JavaScript large number library?

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