import padStart from 'lodash/padStart' export function toPaddedBigInt (id) { return padStart(id, 30, '0') } export function toReversePaddedBigInt (id) { let bigInt = toPaddedBigInt(id) let res = '' for (let i = 0; i < bigInt.length; i++) { res += (9 - parseInt(bigInt.charAt(i), 10)).toString(10) } return res }