Package Exports
- eth-helpers
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (eth-helpers) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
eth-utils
Kitchensink of ethereum utils
Usage
Units
const units = require('eth-utils/units')
const { Wei, Ether, GWei } = units
const gasPrice = 16n * GWei
const value = units.parse('2.7811', { from: Ether }) // implicit `to: Wei`
const tx = // Send tx
console.log(units.format(address.balance, { to: Ether, from: Wei, decimals: 4 }))API
Utils
const str = utils.format(nullish|string|Buffer|number|BigInt)
Format any of the above types as a eth hex string.
const receipt = async utils.mined(txHash, eth)
Wait for a transaction to be mined
Units
The units module contains a list of constants as well as helper functions to convert to and from strings and do lossless conversion.
Unit constants include as BigInt:
WeiKWei/babbageMWei/lovelaceGWei/shannonµEther/microether/szabomEther/milliether/finneyEtherKEtherMEtherGEtherTEther
const bigint = units.convert(value, from, [to = Wei])
Lossless unit conversion to BigInt. Asserts that no precision is lost.
const number = units.convertLossy(value, from, [to = Wei])
Lossy unit conversion to Number. Not suitable to exact calculations.
const str = units.format(value, { from = Wei, to = Wei, decimals = null })
Format BigInt as a string with from basis to to basis. Optional set the
number of decimals similar to toFixed
const bigint = units.parse(string, { from, to = Wei })
Parse a string number into BigInt with specified basis.
Install
npm install eth-utils