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22 lines
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<html><head><title>Constants</title><link rel="stylesheet" type="text/css" href="/static/style.css"></head><body><div class="sidebar"><div class="header"><div class="logo"><a href="/"><div class="image"></div><div class="name">ethers</div><div class="version">v5.0-beta</div></a></div></div><div class="toc"><div><div class="link title"><a href="/">Documentation</a></div><div class="base show link depth-1"><a href="/getting-started/">Getting Started</a></div><div class="hide link depth-2"><a href="/getting-started/#installing">Installing</a></div><div class="hide link depth-2"><a href="/getting-started/#importing">Importing</a></div><div class="base show link depth-1"><a href="/concepts/">Concepts</a></div><div class="hide link depth-2"><a href="/concepts/events/">Events</a></div><div class="hide link depth-3"><a href="/concepts/events/#solidity-topics">Solidity Topics</a></div><div class="hide link depth-2"><a href="/concepts/gas/">Gas</a></div><div class="hide link depth-3"><a 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href="/api/providers/jsonrpc-provider/">JsonRpcProvider</a></div><div class="hide link depth-4"><a href="/api/providers/jsonrpc-provider/#jsonrpcsigner">JsonRpcSigner</a></div><div class="hide link depth-4"><a href="/api/providers/jsonrpc-provider/#jsonrpcuncheckedsigner">JsonRpcUncheckedSigner</a></div><div class="hide link depth-3"><a href="/api/providers/api-providers/">API Providers</a></div><div class="hide link depth-4"><a href="/api/providers/api-providers/#etherscanprovider">EtherscanProvider</a></div><div class="hide link depth-4"><a href="/api/providers/api-providers/#infuraprovider">InfuraProvider</a></div><div class="hide link depth-4"><a href="/api/providers/api-providers/#alchemyprovider">AlchemyProvider</a></div><div class="hide link depth-4"><a href="/api/providers/api-providers/#cloudfrontprovider">CloudfrontProvider</a></div><div class="hide link depth-3"><a href="/api/providers/other/">Other Providers</a></div><div class="hide link depth-4"><a href="/api/providers/other/#fallbackprovider">FallbackProvider</a></div><div class="hide link depth-4"><a href="/api/providers/other/#ipcprovider">IpcProvider</a></div><div class="hide link depth-4"><a href="/api/providers/other/#urljsonrpcprovider">UrlJsonRpcProvider</a></div><div class="hide link depth-4"><a href="/api/providers/other/#web3provider">Web3Provider</a></div><div class="hide link depth-3"><a href="/api/providers/types/">Types</a></div><div class="hide link depth-4"><a href="/api/providers/types/#network">Network</a></div><div class="hide link depth-4"><a href="/api/providers/types/#block">Block</a></div><div class="hide link depth-4"><a href="/api/providers/types/#events-and-logs">Events and Logs</a></div><div class="hide link depth-4"><a href="/api/providers/types/#transactions">Transactions</a></div><div class="ancestor show link depth-2"><a href="/api/utils/">Utilities</a></div><div class="show link depth-3"><a href="/api/utils/address/">Addresses</a></div><div 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href="/api/utils/bignumber/#types">Types</a></div><div class="hide link depth-4"><a href="/api/utils/bignumber/#creating-instances">Creating Instances</a></div><div class="hide link depth-4"><a href="/api/utils/bignumber/#methods">Methods</a></div><div class="hide link depth-4"><a href="/api/utils/bignumber/#notes">Notes</a></div><div class="show link depth-3"><a href="/api/utils/bytes/">Byte Manipulation</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#types">Types</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#inspection">Inspection</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#converting-between-arrays-and-hexstrings">Converting between Arrays and Hexstrings</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#array-manipulation">Array Manipulation</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#hexstring-manipulation">Hexstring Manipulation</a></div><div class="hide link depth-4"><a href="/api/utils/bytes/#signature-conversion">Signature Conversion</a></div><div class="myself ancestor ancestor show link depth-3"><a href="/api/utils/constants/">Constants</a></div><div class="child link depth-4"><a href="/api/utils/constants/#bytes">Bytes</a></div><div class="child link depth-4"><a href="/api/utils/constants/#strings">Strings</a></div><div class="child link depth-4"><a href="/api/utils/constants/#bignumber">BigNumber</a></div><div class="show link depth-3"><a href="/api/utils/display-logic/">Display Logic and Input</a></div><div class="hide link depth-4"><a href="/api/utils/display-logic/#units">Units</a></div><div class="hide link depth-4"><a href="/api/utils/display-logic/#functions">Functions</a></div><div class="show link depth-3"><a href="/api/utils/fixednumber/">FixedNumber</a></div><div class="hide link depth-4"><a href="/api/utils/fixednumber/#fixedformat">FixedFormat</a></div><div class="hide link depth-4"><a 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link depth-4"><a href="/api/utils/strings/#unicodenormalizationform">UnicodeNormalizationForm</a></div><div class="hide link depth-4"><a href="/api/utils/strings/#custom-utf-8-error-handling">Custom UTF-8 Error Handling</a></div><div class="show link depth-3"><a href="/api/utils/transactions/">Transactions</a></div><div class="hide link depth-4"><a href="/api/utils/transactions/#types">Types</a></div><div class="hide link depth-4"><a href="/api/utils/transactions/#functions">Functions</a></div><div class="show link depth-2"><a href="/api/other/">Other Libraries</a></div><div class="hide link depth-3"><a href="/api/other/hardware/">Hardware Wallets</a></div><div class="hide link depth-4"><a href="/api/other/hardware/#ledgersigner">LedgerSigner</a></div><div class="base show link depth-1"><a href="/cli/">Command Line Interfaces</a></div><div class="hide link depth-2"><a href="/cli/ethers/">Sandbox Utility</a></div><div class="hide link depth-3"><a 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href="/cli/plugin/#plugin">Plugin</a></div><div class="hide link depth-3"><a href="/cli/plugin/#argparser">ArgParser</a></div><div class="base show link depth-1"><a href="/cookbook/">Cookbook</a></div><div class="base show link depth-1"><a href="/migration/">Migration Guide</a></div><div class="hide link depth-2"><a href="/migration/#from-web3">From Web3</a></div><div class="hide link depth-2"><a href="/migration/#from-ethers-v4">From ethers v4</a></div><div class="base show link depth-1"><a href="/testing/">Testing</a></div><div class="base show link depth-1"><a href="/contributing/">Contributing and Hacking</a></div><div class="hide link depth-2"><a href="/contributing/#building">Building</a></div><div class="base show link depth-1"><a href="/documentation/">Flatworm Docs</a></div><div class="hide link depth-2"><a href="/documentation/#fragments">Fragments</a></div><div class="hide link depth-2"><a href="/documentation/#markdown">Markdown</a></div><div class="hide link depth-2"><a href="/documentation/#configuration">Configuration</a></div><div class="hide link depth-2"><a href="/documentation/#extended-directive-functions">Extended Directive Functions</a></div><div class="base show link depth-1"><a href="/license/">License and Copyright</a></div></div></div></div><div class="content"><div class="breadcrumbs"><a href="/">Documentation</a> » <a href="/api/">Application Programming Interface</a> » <a href="/api/utils/">Utilities</a> » <span class="current">Constants</span></div>
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<a name="constants"></a><a name="constants"></a><h1 class="show-anchors"><div>Constants<div class="anchors"><a class="self" href="#constants"></a></div></div></h1>
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<p>The <b>ethers.contants</b> Object contains commonly used values.</p>
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<a name="importing"></a><h3 class="show-anchors"><div>Importing<div class="anchors"><a class="self" href="#importing"></a></div></div></h3>
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<div class="code"><br><span class="comment">//const { constants } = require("ethers");</span><br><span class="comment">// const { constants } = require("@ethersproject/constants");</span><br></div>
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<a name="bytes"></a><h2 class="show-anchors"><div>Bytes<div class="anchors"><a class="self" href="#bytes"></a></div></div></h2>
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<a name="constants-addresszero"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">AddressZero</span> <span class="arrow">⇒</span> <span class="returns">string< <a href="/api/utils/address/#address">Address</a> ></span><div class="anchors"><a class="self" href="#constants-addresszero"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L5">source</a></div></div><div class="body"><p>The Address Zero, which is 20 bytes (40 nibbles) of zero.</p></div></div>
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<a name="constants-hashzero"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">HashZero</span> <span class="arrow">⇒</span> <span class="returns">string< <a href="/api/utils/bytes/#datahexstring">DataHexstring</a>< 32 > ></span><div class="anchors"><a class="self" href="#constants-hashzero"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L6">source</a></div></div><div class="body"><p>The Hash Zero, which is 32 bytes (64 nibbles) of zero.</p></div></div>
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<a name="strings"></a><h2 class="show-anchors"><div>Strings<div class="anchors"><a class="self" href="#strings"></a></div></div></h2>
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<a name="constants-ethersymbol"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">EtherSymbol</span> <span class="arrow">⇒</span> <span class="returns">string</span><div class="anchors"><a class="self" href="#constants-ethersymbol"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L9">source</a></div></div><div class="body"><p>The Ether symbol, <b>Ξ</b>.</p></div></div>
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<a name="bignumber"></a><h2 class="show-anchors"><div>BigNumber<div class="anchors"><a class="self" href="#bignumber"></a></div></div></h2>
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<a name="constants-negativeone"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">NegativeOne</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-negativeone"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L11">source</a></div></div><div class="body"><p>The BigNumber value representing <code class="inline">"-1"</code>.</p></div></div>
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<a name="constants-zero"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">Zero</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-zero"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L12">source</a></div></div><div class="body"><p>The BigNumber value representing <code class="inline">"0"</code>.</p></div></div>
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<a name="constants-one"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">One</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-one"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L13">source</a></div></div><div class="body"><p>The BigNumber value representing <code class="inline">"1"</code>.</p></div></div>
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<a name="constants-two"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">Two</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-two"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L14">source</a></div></div><div class="body"><p>The BigNumber value representing <code class="inline">"2"</code>.</p></div></div>
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<a name="constants-weiperether"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">WeiPerEther</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-weiperether"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L15">source</a></div></div><div class="body"><p>The BigNumber value representing <code class="inline">"1000000000000000000"</code>, which is the number of Wei per Ether.</p></div></div>
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<a name="constants-maxuint256"></a><div class="property show-anchors"><div class="signature"><span class="path">constants</span> . <span class="method">MaxUint256</span> <span class="arrow">⇒</span> <span class="returns"><a href="/api/utils/bignumber/">BigNumber</a></span><div class="anchors"><a class="self" href="#constants-maxuint256"></a><a class="source" href="https://github.com/ethers-io/ethers.js/blob/ethers-v5-beta/packages/constants/src.ts/index.ts#L16">source</a></div></div><div class="body"><p>The BigNumber value representing the maximum <code class="inline">uint256</code> value.</p></div></div><div class="footer"><div class="nav previous"><a href="/api/utils/bytes/"><span class="arrow">←</span>Byte Manipulation</a></div> <div class="nav next"><a href="/api/utils/display-logic/">Display Logic and Input<span class="arrow">→</span></a></div></div><div class="copyright">The content of this site is licensed under the <a href="https://choosealicense.com/licenses/cc-by-4.0/">Creative Commons Attribution 4.0 International License</a>.</div></div><script src="/script.js" type="text/javascript"></script></body></html><!-- ContentHash:8732112b89ac959c2d7a0f0973da5c564b8f0905fd2f746eeac011434d55989c --> |