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<div class="section" id="what-is-ethers-js">
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<h1>What is ethers.js<a class="headerlink" href="#what-is-ethers-js" title="Permalink to this headline">¶</a></h1>
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<p>This library (which was made for and used by ethers.io) is designed to make it
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easier to write client-side JavaScript based wallets, keeping the private key on
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the owner’s machine at all times.</p>
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<p class="caption"><span class="caption-text">Developer Documentation</span></p>
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<li class="toctree-l1"><a class="reference internal" href="getting-started.html">Getting Started</a><ul>
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<li class="toctree-l1"><a class="reference internal" href="api.html">Application Programming Interface (API)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-wallet.html#creating-instances">Creating Instances</a></li>
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<li class="toctree-l2"><a class="reference internal" href="api-providers.html">Providers API</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#connecting-to-ethereum">Connecting to Ethereum</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#contract-execution">Contract Execution</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#contract-state">Contract State</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#events">Events</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#objects">Objects</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-providers.html#provider-specific-extra-api-calls">Provider Specific Extra API Calls</a></li>
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</ul>
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<li class="toctree-l2"><a class="reference internal" href="api-contract.html">Contracts</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-contract.html#connecting-to-a-contract">Connecting to a Contract</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-contract.html#prototype">Prototype</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-contract.html#result-types">Result Types</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-contract.html#deploying-a-contract">Deploying a Contract</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-contract.html#custom-signer">Custom Signer</a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="api-utils.html">Utilities</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#big-numbers">Big Numbers</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#ether-strings-and-wei">Ether Strings and Wei</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#addresses">Addresses</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#utf-8-strings">UTF-8 Strings</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#cryptographic-functions">Cryptographic Functions</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#solidity-cryptographic-functions">Solidity Cryptographic Functions</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#arrayish">Arrayish</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#hex-strings">Hex Strings</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-utils.html#contract-addresses">Contract Addresses</a></li>
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<li class="toctree-l1"><a class="reference internal" href="api-advanced.html">Low-Level API</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="api-advanced.html#hdnode">HDNode</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#creating-instances">Creating Instances</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#static-methods">Static Methods</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#examples"><em>Examples</em></a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#creating-an-instance">Creating an Instance</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id1">Prototype</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id2"><em>Examples</em></a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id3">Creating Instances</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#static-properties">Static Properties</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id4">Prototype</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id5">Static Methods</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id6">Prototype</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id7"><em>Examples</em></a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="api-advanced.html#signing-key">Signing Key</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id8">Creating Instances</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id9">Static Methods</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id10">Prototype</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id11"><em>Examples</em></a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="api-advanced.html#recursive-length-prefixed-encoding-rlp">Recursive-Length Prefixed Encoding (RLP)</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id12">Static Methods</a></li>
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<li class="toctree-l3"><a class="reference internal" href="api-advanced.html#id13"><em>Examples</em></a></li>
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</ul>
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</li>
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</ul>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="cookbook.html">Cookbook</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#dump-all-json-wallet-balances-in-current-directory">Dump All JSON Wallet Balances (in current directory)</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#empty-one-account-into-another">Empty One Account into Another</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#transactions-confirm-ui-with-a-custom-signer">Transactions Confirm UI (with a Custom Signer)</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#break-apart-r-s-and-v-from-a-message-signature">Break Apart r, s and v from a Message Signature</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#coalesce-jaxx-wallets">Coalesce Jaxx Wallets</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="cookbook.html#source-code"><em>Source Code</em></a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#access-funds-in-a-mnemonic-phrase-wallet">Access Funds in a Mnemonic Phrase Wallet</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="cookbook.html#id1"><em>Source Code</em></a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="cookbook.html#custom-provider">Custom Provider</a></li>
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</ul>
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</li>
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<li class="toctree-l1"><a class="reference internal" href="notes.html">Notes</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="notes.html#why-can-t-i-just-use-numbers">Why can’t I just use numbers?</a></li>
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<li class="toctree-l2"><a class="reference internal" href="notes.html#promises">Promises</a><ul>
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<li class="toctree-l3"><a class="reference internal" href="notes.html#examples"><strong>Examples</strong></a></li>
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</ul>
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</li>
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<li class="toctree-l2"><a class="reference internal" href="notes.html#checksum-address">Checksum Address</a></li>
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<li class="toctree-l2"><a class="reference internal" href="notes.html#icap-address">ICAP Address</a></li>
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</ul>
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