web3.utils

This package provides utility functions for Ethereum dapps and other web3.js packages.

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fromDecimalUnit

web3.utils.fromDecimalUnit(value , decimal)

Convert a value from decimal into non-decimal.

Parameters

1. value - string: The value.

2. decimal - number: The decimal to convert from.

Returns

BN: a BN.js instance.

Example

web3.utils.fromDecimalUnit('1000', 3).toString();
> "1000000"

web3.utils.fromDecimalUnit('100.123456', 6).toString();
> "100123456"

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toDecimalUnit

web3.utils.toDecimalUnit(value , decimal)

1. value - string: The value.

2. decimal - number: The decimal to convert to.

Returns

string: A string number.

Example

web3.utils.toDecimalUnit('1024', 3);
> "1.024"

 web3.utils.toDecimalUnit('1024', 6);
> "0.001024"

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fromSatoshis

web3.utils.fromSatoshis(value)

Convert a value from satoshis into bsv.

Parameters

1. value - string|number: The value.

Returns

BN: a BN.js instance.

Example

web3.utils.fromSatoshis('100000000').toString();
> "1"

web3.utils.fromSatoshis('1000').toString();
> "0.00001"

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toSatoshis

web3.utils.toSatoshis(value)

Convert a value from bsv into satoshis.

Parameters

1. value - string|number: The value.

Returns

number: A float number.

Example

web3.utils.toSatoshis('1').toString();
> "100000000"

web3.utils.toSatoshis('0.01').toString();
> "1000000"

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verifyMessage

web3.utils.verifyMessage(message, address, signature)

Verify the signature of a message.

Parameters

1. message - string: The message to sign.

2. address - string: The address of signer.

3. signature - string: The signature.

Returns

boolean: Whether signature is valid or not.

Example

web3.utils.verifyMessage("","","").toString();
> false

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