web3.js web3.utils.toTwosComplement

web3.utils.toTwosComplement(number)

負の数を2の補数に変換します。

パラメータ

戻り値

String

サンプル

code:ex.js

web3.utils.toTwosComplement('-1');

"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"

web3.utils.toTwosComplement(-1);

"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"

web3.utils.toTwosComplement('0x1');

"0x0000000000000000000000000000000000000000000000000000000000000001"

web3.utils.toTwosComplement(-15);

"0xfffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff1"

web3.utils.toTwosComplement('-0x1');

"0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff"

参考