node-biginteger-ra

node-biginteger

This library is based on java.math.BigInteger Dependency Long

example

  $ npm install node-biginteger

  var BigInteger = require('node-biginteger');
  var n = BigInteger.fromString('abc', 16);
  n.toString(16);
  

Class Method: BigInteger.fromLong(val)

• val Long
• Return: BigInteger

Class Method: BigInteger.fromString(val, [radix])

• val String
• radix int,Optional, Default: 10
• Return: BigInteger

Class Method: BigInteger.fromBuffer(signum, magnitude)

• signum int, 1,0,-1
• magnitude Array
• Return: BigInteger

n.toBuffer()

• Return: Buffer

n.toString()

• Return: String

n.abs()

• Return: BigInteger

n.negate()

• Return: BigInteger

n.longValue()

• Return: Long

n.add(val)

• val BigInteger
• Return: BigInteger

n.subtract(val)

• val BigInteger
• Return: BigInteger

n.multiply(val)

• val BigInteger
• Return: BigInteger

n.and(val)

• val BigInteger
• Return: BigInteger

n.andNot(val)

• val BigInteger
• Return: BigInteger

n.not()

• Return: BigInteger

n.pow(exponent)

• exponent int
• Return: BigInteger

  var n = BigInteger.fromString('2', 10);
  var n1 = n.pow(2);
  console.log(n1.toString());
  // 4

n.divide(val)

• val BigInteger
• Return: BigInteger

n.remainder(val)

• val BigInteger
• Return: BigInteger

Benchmark

$ node beanchmark.js

  BigInteger#multiply x 68,912 ops/sec ±0.50% (100 runs sampled)
  bignum#mul x 40,709 ops/sec ±1.30% (90 runs sampled)
  BigInteger#modPow(long) x 79.62 ops/sec ±0.98% (71 runs sampled)
  bignum#powm(long) x 22,901 ops/sec ±2.43% (92 runs sampled)
  BigInteger#modPow(short) x 134,965 ops/sec ±1.19% (97 runs sampled)
  bignum#powm(short) x 55,922 ops/sec ±2.84% (91 runs sampled)

License

MIT