42 lines
20 KiB
HTML
42 lines
20 KiB
HTML
<!DOCTYPE html>
|
|
<html class="paged">
|
|
<head>
|
|
<title>Utilities</title>
|
|
<link rel="stylesheet" type="text/css" href="/v5/static/style.css">
|
|
<meta property="og:title" content="Utilities"/>
|
|
<meta property="og:description" content="Documentation for ethers, a complete, tiny and simple Ethereum library."/>
|
|
|
|
<meta property="og:image" content="/v5/static/social.jpg"/>
|
|
|
|
</head>
|
|
<body>
|
|
<div class="sidebar">
|
|
<div class="header">
|
|
<div class="logo"><a href="/v5/"><div class="image"></div><div class="name">ethers</div><div class="version">v5.0</div></a></div>
|
|
<div class="search"><form action="/v5/search/" method="GET"><input name="search" id="search" /></form><span class="search-icon">⚲</span></div>
|
|
</div>
|
|
<div class="toc"><div>
|
|
<div class="link title"><a href="/v5/">Documentation</a></div><div class="base show link depth-1"><a href="/v5/getting-started/">Getting Started</a></div><div class="base show link depth-1"><a href="/v5/concepts/">Ethereum Basics</a></div><div class="hide link depth-2"><a href="/v5/concepts/events/">Events</a></div><div class="hide link depth-2"><a href="/v5/concepts/gas/">Gas</a></div><div class="hide link depth-2"><a href="/v5/concepts/security/">Security</a></div><div class="hide link depth-2"><a href="/v5/concepts/best-practices/">Best Practices</a></div><div class="base show link depth-1"><a href="/v5/api-keys/">Provider API Keys</a></div><div class="base ancestor show link depth-1"><a href="/v5/api/">Application Programming Interface</a></div><div class="show link depth-2"><a href="/v5/api/providers/">Providers</a></div><div class="hide link depth-3"><a href="/v5/api/providers/provider/">Provider</a></div><div class="hide link depth-3"><a href="/v5/api/providers/jsonrpc-provider/">JsonRpcProvider</a></div><div class="hide link depth-3"><a href="/v5/api/providers/api-providers/">API Providers</a></div><div class="hide link depth-3"><a href="/v5/api/providers/other/">Other Providers</a></div><div class="hide link depth-3"><a href="/v5/api/providers/types/">Types</a></div><div class="show link depth-2"><a href="/v5/api/signer/">Signers</a></div><div class="show link depth-2"><a href="/v5/api/contract/">Contract Interaction</a></div><div class="hide link depth-3"><a href="/v5/api/contract/contract/">Contract</a></div><div class="hide link depth-3"><a href="/v5/api/contract/contract-factory/">ContractFactory</a></div><div class="hide link depth-3"><a href="/v5/api/contract/example/">Example: ERC-20 Contract</a></div><div class="myself ancestor ancestor show link depth-2"><a href="/v5/api/utils/">Utilities</a></div><div class="child show link depth-3"><a href="/v5/api/utils/abi/">Application Binary Interface</a></div><div class="hide link depth-4"><a href="/v5/api/utils/abi/coder/">AbiCoder</a></div><div class="hide link depth-4"><a href="/v5/api/utils/abi/formats/">ABI Formats</a></div><div class="hide link depth-4"><a href="/v5/api/utils/abi/fragments/">Fragments</a></div><div class="hide link depth-4"><a href="/v5/api/utils/abi/interface/">Interface</a></div><div class="child show link depth-3"><a href="/v5/api/utils/address/">Addresses</a></div><div class="child show link depth-3"><a href="/v5/api/utils/bignumber/">BigNumber</a></div><div class="child show link depth-3"><a href="/v5/api/utils/bytes/">Byte Manipulation</a></div><div class="child show link depth-3"><a href="/v5/api/utils/constants/">Constants</a></div><div class="child show link depth-3"><a href="/v5/api/utils/display-logic/">Display Logic and Input</a></div><div class="child show link depth-3"><a href="/v5/api/utils/encoding/">Encoding Utilities</a></div><div class="child show link depth-3"><a href="/v5/api/utils/fixednumber/">FixedNumber</a></div><div class="child show link depth-3"><a href="/v5/api/utils/hashing/">Hashing Algorithms</a></div><div class="child show link depth-3"><a href="/v5/api/utils/hdnode/">HD Wallet</a></div><div class="child show link depth-3"><a href="/v5/api/utils/logger/">Logging</a></div><div class="child show link depth-3"><a href="/v5/api/utils/properties/">Property Utilities</a></div><div class="child show link depth-3"><a href="/v5/api/utils/signing-key/">Signing Key</a></div><div class="child show link depth-3"><a href="/v5/api/utils/strings/">Strings</a></div><div class="child show link depth-3"><a href="/v5/api/utils/transactions/">Transactions</a></div><div class="child show link depth-3"><a href="/v5/api/utils/web/">Web Utilities</a></div><div class="child show link depth-3"><a href="/v5/api/utils/wordlists/">Wordlists</a></div><div class="show link depth-2"><a href="/v5/api/other/">Other Libraries</a></div><div class="hide link depth-3"><a href="/v5/api/other/assembly/">Assembly</a></div><div class="hide link depth-4"><a href="/v5/api/other/assembly/dialect/">Ethers ASM Dialect</a></div><div class="hide link depth-4"><a href="/v5/api/other/assembly/api/">Utilities</a></div><div class="hide link depth-4"><a href="/v5/api/other/assembly/ast/">Abstract Syntax Tree</a></div><div class="hide link depth-3"><a href="/v5/api/other/hardware/">Hardware Wallets</a></div><div class="show link depth-2"><a href="/v5/api/experimental/">Experimental</a></div><div class="base show link depth-1"><a href="/v5/cli/">Command Line Interfaces</a></div><div class="hide link depth-2"><a href="/v5/cli/ethers/">Sandbox Utility</a></div><div class="hide link depth-2"><a href="/v5/cli/asm/">Assembler</a></div><div class="hide link depth-2"><a href="/v5/cli/ens/">Ethereum Naming Service</a></div><div class="hide link depth-2"><a href="/v5/cli/typescript/">TypeScript</a></div><div class="hide link depth-2"><a href="/v5/cli/plugin/">Making Your Own</a></div><div class="base show link depth-1"><a href="/v5/cookbook/">Cookbook</a></div><div class="hide link depth-2"><a href="/v5/cookbook/react-native/">React Native (and ilk)</a></div><div class="base show link depth-1"><a href="/v5/migration/">Migration Guide</a></div><div class="hide link depth-2"><a href="/v5/migration/web3/">Migration: From Web3.js</a></div><div class="hide link depth-2"><a href="/v5/migration/ethers-v4/">Migration: From Ethers v4</a></div><div class="base show link depth-1"><a href="/v5/testing/">Testing</a></div><div class="base show link depth-1"><a href="/v5/contributing/">Contributing and Hacking</a></div><div class="base show link depth-1"><a href="/v5/other-resources/">Other Resources</a></div><div class="base show link depth-1"><a href="/v5/documentation/">Flatworm Docs</a></div><div class="base show link depth-1"><a href="/v5/license/">License and Copyright</a></div>
|
|
</div></div>
|
|
<div class="footer">
|
|
<a href="/v5/single-page/">Single Page</a>
|
|
</div>
|
|
</div>
|
|
<div class="content">
|
|
<div class="breadcrumbs"><a href="/v5/">Documentation</a> » <a href="/v5/api/">API</a> » <span class="current">Utilities</span></div>
|
|
|
|
<a name="utilities"></a><h1 class="show-anchors"><div>Utilities<div class="anchors"><a class="self" href="/v5/api/utils/#utilities"></a></div></div></h1><p>These utilities are used extensively within the library, but are also quite useful for application developers.</p>
|
|
|
|
<div class="toc"><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/abi/">Application Binary Interface</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/abi/coder/">AbiCoder</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/coder/#AbiCoder--creating">Creating Instance</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/coder/#AbiCoder--methods">Coding Methods</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/abi/formats/">ABI Formats</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/formats/#abi-formats--human-readable-abi">Human-Readable ABI</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/formats/#abi-formats--solidity">Solidity JSON ABI</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/">Fragments</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#fragments--formats">Formats</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#Fragment">Fragment</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#ConstructorFragment">ConstructorFragment</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#EventFragment">EventFragment</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#FunctionFragment">FunctionFragment</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/fragments/#ParamType">ParamType</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/">Interface</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--creating">Creating Instances</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--properties">Properties</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--formatting">Formatting</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--fragments">Fragment Access</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--selectors">Signature and Topic Hashes</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--encoding">Encoding Data</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--decoding">Decoding Data</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--parsing">Parsing</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--types">Types</a></div><div style="padding-left: 56px"><span class="bullet">•</span><a href="/v5/api/utils/abi/interface/#Interface--specifying-fragments">Specifying Fragments</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/address/">Addresses</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/address/#address-formats">Address Formats</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/address/#utils--address">Converting and Verifying</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/address/#utils--address-derivation">Derivation</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/address/#utils--contract-addresses">Contracts Addresses</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/bignumber/">BigNumber</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bignumber/#BigNumber--types">Types</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bignumber/#BigNumber--creating">Creating Instances</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bignumber/#BigNumber--methods">Methods</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bignumber/#BigNumber--notes">Notes</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/">Byte Manipulation</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--types">Types</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--inspection">Inspection</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--converting-between-arrays-and-hexstrings">Converting between Arrays and Hexstrings</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--array-manipulation">Array Manipulation</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--hexstring-manipulation">Hexstring Manipulation</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--signature-conversion">Signature Conversion</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/bytes/#byte-manipulation--random-bytes">Random Bytes</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/constants/">Constants</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/constants/#constants--bytes">Bytes</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/constants/#constants--strings">Strings</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/constants/#constants--bignumber">BigNumber</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/display-logic/">Display Logic and Input</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/display-logic/#display-logic--units">Units</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/display-logic/#display-logic--functions">Functions</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/encoding/">Encoding Utilities</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/encoding/#Bse58">Base58</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/encoding/#Base64">Base64</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/encoding/#rlp--methods">Recursive-Length Prefix</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/fixednumber/">FixedNumber</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/fixednumber/#FixedNumber--creating-instances">Creating Instances</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/fixednumber/#FixedNumber--properties">Properties</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/fixednumber/#FixedNumber--methods">Methods</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/fixednumber/#FixedFormat">FixedFormat</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/hashing/">Hashing Algorithms</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hashing/#cryptographic-hash-functions">Cryptographic Hash Functions</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hashing/#utils--hmac">HMAC</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hashing/#utils--hashing-helpers">Hashing Helpers</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hashing/#utils--solidity-hashing">Solidity Hashing Algorithms</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/hdnode/">HD Wallet</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hdnode/#hdnodes--types">Types</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hdnode/#HDNode">HDNode</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/hdnode/#HDNode--utilities">Other Functions</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/logger/">Logging</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/logger/#Logger">Logger</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/logger/#errors">Errors</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/logger/#Logger-levels">Log Levels</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/properties/">Property Utilities</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/signing-key/">Signing Key</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/signing-key/#SigningKey--other-functions">Other Functions</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/strings/">Strings</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/strings/#Bytes32String">Bytes32String</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/strings/#strings-utf8">UTF-8 Strings</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/strings/#strings--unicode-normalization-form">UnicodeNormalizationForm</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/strings/#strings--error-handling">Custom UTF-8 Error Handling</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/transactions/">Transactions</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/transactions/#transactions--types">Types</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/transactions/#transactions--functions">Functions</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/web/">Web Utilities</a></div><div style="padding-left: 0px"><span class="bullet">•</span><a href="/v5/api/utils/wordlists/">Wordlists</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/wordlists/#Wordlist">Wordlist</a></div><div style="padding-left: 28px"><span class="bullet">•</span><a href="/v5/api/utils/wordlists/#wordlists--languages">Languages</a></div></div>
|
|
|
|
<div class="footer">
|
|
<div class="nav previous"><a href="/v5/api/contract/example/"><span class="arrow">←</span>Example: ERC-20 Contract</a></div>
|
|
<div class="nav next"><a href="/v5/api/utils/abi/">Application Binary Interface<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 License</a>. Generated on February 8, 2021, 3:25pm.</div>
|
|
</div>
|
|
<script src="/v5/static/script.js" type="text/javascript"></script>
|
|
<!--EXTRASCRIPT-->
|
|
</body>
|
|
</html>
|