import { BigNumber } from '@0xproject/utils'; export const utils = { getSignatureTypeIndexIfExists(signature: string): number { // tslint:disable-next-line:custom-no-magic-numbers const signatureTypeHex = signature.slice(-2); const base = 16; const signatureTypeInt = parseInt(signatureTypeHex, base); return signatureTypeInt; }, getCurrentUnixTimestampSec(): BigNumber { const milisecondsInSecond = 1000; return new BigNumber(Date.now() / milisecondsInSecond).round(); }, };