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-rw-r--r--packages/0x.js/src/utils/assert.ts5
1 files changed, 3 insertions, 2 deletions
diff --git a/packages/0x.js/src/utils/assert.ts b/packages/0x.js/src/utils/assert.ts
index 63d975c03..55912525c 100644
--- a/packages/0x.js/src/utils/assert.ts
+++ b/packages/0x.js/src/utils/assert.ts
@@ -9,7 +9,8 @@ import {ECSignature} from '../types';
const HEX_REGEX = /^0x[0-9A-F]*$/i;
-export const assert = _.extend({}, sharedAssert, {
+export const assert = {
+ ...sharedAssert,
isValidSignature(orderHash: string, ecSignature: ECSignature, signerAddress: string) {
const isValidSignature = signatureUtils.isValidSignature(orderHash, ecSignature, signerAddress);
this.assert(isValidSignature, `Expected order with hash '${orderHash}' to have a valid signature`);
@@ -26,4 +27,4 @@ export const assert = _.extend({}, sharedAssert, {
const availableAddresses = await web3Wrapper.getAvailableAddressesAsync();
this.assert(!_.isEmpty(availableAddresses), 'No addresses were available on the provided web3 provider');
},
-});
+};