The latest articles on DEV Community by Vijay Thakur (@speqtovijay). https://dev.to/speqtovijay https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F819246%2F8e51a251-30b3-458d-a795-0503b472ba76.jpeg https://dev.to/speqtovijay en Vijay Thakur Fri, 25 Feb 2022 10:06:31 +0000 https://dev.to/speqtovijay/solidity-related-question-when-i-change-compiler-version-08-then-through-error-5563 https://dev.to/speqtovijay/solidity-related-question-when-i-change-compiler-version-08-then-through-error-5563 <p>by using solidity compiler 0.8 through Explicit type conversion not allowed from "address" to "uint256".</p> <p>for (uint idx = 0; idx &lt; v.length; idx++){<br> address signer = ecrecover(signedHash, v[idx], r[idx], s[idx]);<br> require(admins[signer]);<br> require(uint256(signer) &gt; uint256(lastVoter));<br> lastVoter = signer;<br> emit NewCheckpointVote(_sectionIndex, _hash, v[idx], r[idx], s[idx]);</p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code> // Sufficient signatures present, update latest checkpoint. if (idx+1 &gt;= threshold){ hash = _hash; height = block.number; sectionIndex = _sectionIndex; return true; } } // We shouldn't wind up here, reverting un-emits the events revert(); } </code></pre> </div> Vijay Thakur Wed, 23 Feb 2022 08:09:18 +0000 https://dev.to/speqtovijay/how-to-run-geth-faucet-server-and-see-on-web-please-assist-me-132a https://dev.to/speqtovijay/how-to-run-geth-faucet-server-and-see-on-web-please-assist-me-132a