toTwosComplement

Callable

• toTwosComplement(value: Numbers, nibbleWidth?: number): string

---

• Converts a negative number into the two’s complement and return a hexstring of 64 nibbles.

  @example

  console.log(web3.utils.toTwosComplement(13, 32));
  > 0x0000000000000000000000000000000d
  
  console.log(web3.utils.toTwosComplement('-0x1', 32));
  > 0xffffffffffffffffffffffffffffffff
  
  console.log(web3.utils.toTwosComplement(BigInt('9007199254740992'), 32));
  > 0x00000000000000000020000000000000

  ---

  Parameters

  • value: Numbers

    The value to be converted.

  • nibbleWidth: number = 64

    The nibble width of the hex string (default is 64).

  Returns string

  The hex string of the two’s complement.