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-rw-r--r--contracts/utils/test/lib_bytes.ts2
1 files changed, 1 insertions, 1 deletions
diff --git a/contracts/utils/test/lib_bytes.ts b/contracts/utils/test/lib_bytes.ts
index 985a98943..6fb859c67 100644
--- a/contracts/utils/test/lib_bytes.ts
+++ b/contracts/utils/test/lib_bytes.ts
@@ -25,7 +25,7 @@ const blockchainLifecycle = new BlockchainLifecycle(web3Wrapper);
// BUG: Ideally we would use Buffer.from(memory).toString('hex')
// https://github.com/Microsoft/TypeScript/issues/23155
-const toHex = (buf: Uint8Array): string => buf.reduce((a, v) => a + ('00' + v.toString(16)).slice(-2), '0x');
+const toHex = (buf: Uint8Array): string => buf.reduce((a, v) => a + `00${v.toString(16)}`.slice(-2), '0x');
const fromHex = (str: string): Uint8Array => Uint8Array.from(Buffer.from(str.slice(2), 'hex'));