import { BigNumber } from '@0x/utils'; import { Web3Wrapper } from '@0x/web3-wrapper'; import * as _ from 'lodash'; import { constants } from './constants'; export const utils = { getCurrentUnixTimestampSec(): BigNumber { const milisecondsInSecond = 1000; return new BigNumber(Date.now() / milisecondsInSecond).round(); }, getCurrentUnixTimestampMs(): BigNumber { return new BigNumber(Date.now()); }, numberPercentageToEtherTokenAmountPercentage(percentage: number): BigNumber { return Web3Wrapper.toBaseUnitAmount(constants.ONE_AMOUNT, constants.ETHER_TOKEN_DECIMALS).mul(percentage); }, removeUndefinedProperties(obj: T): Partial { return _.pickBy(obj); }, };