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lines changed Original file line number Diff line number Diff line change @@ -153,6 +153,60 @@ const receipt = await tx.wait();
153153
154154For more details, see this example: https://github.com/hyperweb-io/create-interchain-app/blob/main/examples/ethereum/app/page.tsx
155155
156+ ## Utility Functions
157+
158+ ### Denominations
159+
160+ ``` typescript
161+ import {
162+ parseEther ,
163+ formatEther ,
164+ parseUnits ,
165+ formatUnits
166+ } from " @interchainjs/ethereum/utils/denominations" ;
167+
168+ // Parse ETH to wei
169+ const wei: bigint = parseEther (" 1.5" ); // 1500000000000000000n
170+
171+ // Format wei to ETH
172+ const eth: string = formatEther (wei ); // "1.5"
173+
174+ // Parse a token amount (e.g., 6 decimals)
175+ const units: bigint = parseUnits (" 123.456" , 6 );
176+
177+ // Format back to human‐readable
178+ const amount: string = formatUnits (units , 6 ); // "123.456"
179+ ```
180+
181+ ### Encoding
182+
183+ ``` typescript
184+ import {
185+ utf8ToHex ,
186+ hexToUtf8
187+ } from " @interchainjs/ethereum/utils/encoding" ;
188+
189+ const hex = utf8ToHex (" Hello, Ethereum!" ); // "48656c6c6f2c20457468657265756d21"
190+ const str = hexToUtf8 (" 0x48656c6c6f" ); // "Hello"
191+ ```
192+
193+ ### Address Utilities
194+
195+ ``` typescript
196+ import {
197+ isValidEthereumAddress ,
198+ toChecksumAddress
199+ } from " @interchainjs/ethereum/utils/address" ;
200+
201+ const addr = " 0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359" ;
202+ console .log (isValidEthereumAddress (addr ));
203+ // true
204+
205+ const lower = " 0xfB6916095ca1df60bb79ce92ce3ea74c37c5d359" ;
206+ console .log (toChecksumAddress (lower ));
207+ // "0xfB6916095ca1df60bB79Ce92cE3Ea74c37c5d359"
208+ ```
209+
156210## Implementations
157211
158212- ** SignerFromPrivateKey** from ` @interchainjs/ethereum/signers/SignerFromPrivateKey `
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