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rated 0 times [ 48] [ 5] / answers: 1 / hits: 53124 / 14 Years ago, fri, june 18, 2010, 12:00:00

Is there a bignum built into JavaScript or browsers?

The alternate is loading an external library like

<script type="text/javascript" src="the_bignum_library.js"></script>

but that seems slow and may trigger a security warning.

I've considered basing my own off of http://github.com/silentmatt/javascript-biginteger or http://www.mainebrook.com/john/fun/euler.html. Alternately, is the solution to call into a Java bignum library such as apfloat?

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answered 14 Years ago lucillemariselal · Accepted Answer

Update(2019-08-19): BigInt is now part of Firefox and Chrome; you no longer need a library:

const bigInt1 = 1111111111111111111111111111111n;

const bigInt2 = BigInt(1111111111111111111111111111111)

console.log((bigInt1 + bigInt2)+)

Original answer:

If you need arbitrary-precision decimal numbers, use Javascript-bignum, as it is correct and fast.