diff options
Diffstat (limited to 'packages/utils/src/address_utils.ts')
| -rw-r--r-- | packages/utils/src/address_utils.ts | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/packages/utils/src/address_utils.ts b/packages/utils/src/address_utils.ts index e25bde249..1fc960408 100644 --- a/packages/utils/src/address_utils.ts +++ b/packages/utils/src/address_utils.ts @@ -1,7 +1,10 @@ +import { addHexPrefix, stripHexPrefix } from 'ethereumjs-util'; import * as jsSHA3 from 'js-sha3'; +import * as _ from 'lodash'; const BASIC_ADDRESS_REGEX = /^(0x)?[0-9a-f]{40}$/i; const SAME_CASE_ADDRESS_REGEX = /^(0x)?([0-9a-f]{40}|[0-9A-F]{40})$/; +const ADDRESS_LENGTH = 40; export const addressUtils = { isChecksumAddress(address: string): boolean { @@ -9,8 +12,7 @@ export const addressUtils = { const unprefixedAddress = address.replace('0x', ''); const addressHash = jsSHA3.keccak256(unprefixedAddress.toLowerCase()); - const addressLength = 40; - for (let i = 0; i < addressLength; i++) { + for (let i = 0; i < ADDRESS_LENGTH; i++) { // The nth letter should be uppercase if the nth digit of casemap is 1 const hexBase = 16; const lowercaseRange = 7; @@ -38,4 +40,7 @@ export const addressUtils = { return isValidChecksummedAddress; } }, + padZeros(address: string): string { + return addHexPrefix(_.padStart(stripHexPrefix(address), ADDRESS_LENGTH, '0')); + }, }; |