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<!DOCTYPE html><html class="default" lang="en" data-base="../"><head><meta charset="utf-8"/><meta http-equiv="x-ua-compatible" content="IE=edge"/><title>Deferred | @nats-io/nats-core</title><meta name="description" content="Documentation for @nats-io/nats-core"/><meta name="viewport" content="width=device-width, initial-scale=1"/><link rel="stylesheet" href="../assets/style.css"/><link rel="stylesheet" href="../assets/highlight.css"/><script defer src="../assets/main.js"></script><script async src="../assets/icons.js" id="tsd-icons-script"></script><script async src="../assets/search.js" id="tsd-search-script"></script><script async src="../assets/navigation.js" id="tsd-nav-script"></script><script async src="../assets/hierarchy.js" id="tsd-hierarchy-script"></script></head><body><script>document.documentElement.dataset.theme = localStorage.getItem("tsd-theme") || "os";document.body.style.display="none";setTimeout(() => window.app?app.showPage():document.body.style.removeProperty("display"),500)</script><header class="tsd-page-toolbar"><div class="tsd-toolbar-contents container"><a href="../index.html" class="title">@nats-io/nats-core</a><div id="tsd-toolbar-links"></div><button id="tsd-search-trigger" class="tsd-widget" aria-label="Search"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-search"></use></svg></button><dialog id="tsd-search" aria-label="Search"><input role="combobox" id="tsd-search-input" aria-controls="tsd-search-results" aria-autocomplete="list" aria-expanded="true" autocapitalize="off" autocomplete="off" placeholder="Search the docs" maxLength="100"/><ul role="listbox" id="tsd-search-results"></ul><div id="tsd-search-status" aria-live="polite" aria-atomic="true"><div>Preparing search index...</div></div></dialog><a href="#" class="tsd-widget menu" id="tsd-toolbar-menu-trigger" data-toggle="menu" aria-label="Menu"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-menu"></use></svg></a></div></header><div class="container container-main"><div class="col-content"><div class="tsd-page-title"><ul class="tsd-breadcrumb" aria-label="Breadcrumb"><li><a href="" aria-current="page">Deferred</a></li></ul><h1>Interface Deferred&lt;T&gt;</h1></div><div class="tsd-signature"><span class="tsd-signature-keyword">interface</span> <span class="tsd-kind-interface">Deferred</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span> <span class="tsd-signature-symbol">{</span><br/>    <a class="tsd-kind-property" href="#tostringtag">&quot;[toStringTag]&quot;</a><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span><span class="tsd-signature-symbol">;</span><br/>    <a class="tsd-kind-property" href="#reject">reject</a><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">;</span><br/>    <a class="tsd-kind-property" href="#resolve">resolve</a><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">value</span><span class="tsd-signature-symbol">?:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">;</span><br/>    <a class="tsd-kind-call-signature" href="#catch-1">catch</a><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a> <span class="tsd-signature-symbol">=</span> <span class="tsd-signature-type">never</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">(</span><br/>        <span class="tsd-kind-parameter">onrejected</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/>    <span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">;</span><br/>    <a class="tsd-kind-call-signature" href="#finally-1">finally</a><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">onfinally</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">()</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">;</span><br/>    <a class="tsd-kind-call-signature" href="#then-1">then</a><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">=</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">,</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a> <span class="tsd-signature-symbol">=</span> <span class="tsd-signature-type">never</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">(</span><br/>        <span class="tsd-kind-parameter">onfulfilled</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">value</span><span class="tsd-signature-symbol">:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/>        <span class="tsd-kind-parameter">onrejected</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/>    <span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">;</span><br/><span class="tsd-signature-symbol">}</span></div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span id="t"><span class="tsd-kind-type-parameter">T</span></span></li></ul></section><section class="tsd-panel tsd-hierarchy" data-refl="556"><h4>Hierarchy</h4><ul class="tsd-hierarchy"><li class="tsd-hierarchy-item"><span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span><ul class="tsd-hierarchy"><li class="tsd-hierarchy-item"><span class="tsd-hierarchy-target">Deferred</span></li></ul></li></ul></section><aside class="tsd-sources"><ul><li>Defined in core/build/src/util.ts:141</li></ul></aside><section class="tsd-panel-group tsd-index-group"><section class="tsd-panel tsd-index-panel"><details class="tsd-index-content tsd-accordion" open><summary class="tsd-accordion-summary tsd-index-summary"><svg width="16" height="16" viewBox="0 0 16 16" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronSmall"></use></svg><h5 class="tsd-index-heading uppercase">Index</h5></summary><div class="tsd-accordion-details"><section class="tsd-index-section"><h3 class="tsd-index-heading">Properties</h3><div class="tsd-index-list"><a href="#tostringtag" class="tsd-index-link tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>[to<wbr/>String<wbr/>Tag]</span></a>
<a href="#reject" class="tsd-index-link"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>reject</span></a>
<a href="#resolve" class="tsd-index-link"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>resolve</span></a>
</div></section><section class="tsd-index-section"><h3 class="tsd-index-heading">Methods</h3><div class="tsd-index-list"><a href="#catch" class="tsd-index-link tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>catch</span></a>
<a href="#finally" class="tsd-index-link tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>finally</span></a>
<a href="#then" class="tsd-index-link tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>then</span></a>
</div></section></div></details></section></section><details class="tsd-panel-group tsd-member-group tsd-accordion" open><summary class="tsd-accordion-summary" data-key="section-Properties"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg><h2>Properties</h2></summary><section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><h3 class="tsd-anchor-link" id="tostringtag"><code class="tsd-tag">Readonly</code><span>[to<wbr/>String<wbr/>Tag]</span><a href="#tostringtag" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><div class="tsd-signature"><span class="tsd-kind-property">&quot;[toStringTag]&quot;</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">string</span></div><aside class="tsd-sources"><p>Inherited from Promise.[toStringTag]</p><ul><li>Defined in docs/node_modules/typescript/lib/lib.es2015.symbol.wellknown.d.ts:176</li></ul></aside></section><section class="tsd-panel tsd-member"><h3 class="tsd-anchor-link" id="reject"><span>reject</span><a href="#reject" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><div class="tsd-signature"><span class="tsd-kind-property">reject</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span></div><div class="tsd-comment tsd-typography"><p>Rejects the Deferred</p>
</div><div class="tsd-comment tsd-typography"></div><aside class="tsd-sources"><ul><li>Defined in core/build/src/util.ts:152</li></ul></aside></section><section class="tsd-panel tsd-member"><h3 class="tsd-anchor-link" id="resolve"><span>resolve</span><a href="#resolve" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><div class="tsd-signature"><span class="tsd-kind-property">resolve</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">value</span><span class="tsd-signature-symbol">?:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span></div><div class="tsd-comment tsd-typography"><p>Resolves the Deferred to a value T</p>
</div><div class="tsd-comment tsd-typography"></div><aside class="tsd-sources"><ul><li>Defined in core/build/src/util.ts:146</li></ul></aside></section></section></details><details class="tsd-panel-group tsd-member-group tsd-accordion" open><summary class="tsd-accordion-summary" data-key="section-Methods"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg><h2>Methods</h2></summary><section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><h3 class="tsd-anchor-link" id="catch"><span>catch</span><a href="#catch" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-is-inherited tsd-is-external"><div class="tsd-signature tsd-anchor-link" id="catch-1"><span class="tsd-kind-call-signature">catch</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a> <span class="tsd-signature-symbol">=</span> <span class="tsd-signature-type">never</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">(</span><br/>    <span class="tsd-kind-parameter">onrejected</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span><a href="#catch-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></div><div class="tsd-description"><div class="tsd-comment tsd-typography"><p>Attaches a callback for only the rejection of the Promise.</p>
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span id="catchtresult"><span class="tsd-kind-type-parameter">TResult</span> = <span class="tsd-signature-type">never</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">onrejected</span>: <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span></span><div class="tsd-comment tsd-typography"><p>The callback to execute when the Promise is rejected.</p>
</div><div class="tsd-comment tsd-typography"></div></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#catchtresult">TResult</a><span class="tsd-signature-symbol">&gt;</span></h4><p>A Promise for the completion of the callback.</p>
<div class="tsd-comment tsd-typography"></div><aside class="tsd-sources"><p>Inherited from Promise.catch</p><ul><li>Defined in docs/node_modules/typescript/lib/lib.es5.d.ts:1557</li></ul></aside></div></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><h3 class="tsd-anchor-link" id="finally"><span>finally</span><a href="#finally" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-is-inherited tsd-is-external"><div class="tsd-signature tsd-anchor-link" id="finally-1"><span class="tsd-kind-call-signature">finally</span><span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">onfinally</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">()</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span><a href="#finally-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></div><div class="tsd-description"><div class="tsd-comment tsd-typography"><p>Attaches a callback that is invoked when the Promise is settled (fulfilled or rejected). The
resolved value cannot be modified from the callback.</p>
</div><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">onfinally</span>: <span class="tsd-signature-symbol">()</span> <span class="tsd-signature-symbol">=&gt;</span> <span class="tsd-signature-type">void</span></span><div class="tsd-comment tsd-typography"><p>The callback to execute when the Promise is settled (fulfilled or rejected).</p>
</div><div class="tsd-comment tsd-typography"></div></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">&gt;</span></h4><p>A Promise for the completion of the callback.</p>
<div class="tsd-comment tsd-typography"></div><aside class="tsd-sources"><p>Inherited from Promise.finally</p><ul><li>Defined in docs/node_modules/typescript/lib/lib.es2018.promise.d.ts:29</li></ul></aside></div></li></ul></section><section class="tsd-panel tsd-member tsd-is-inherited tsd-is-external"><h3 class="tsd-anchor-link" id="then"><span>then</span><a href="#then" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></h3><ul class="tsd-signatures tsd-is-inherited tsd-is-external"><li class="tsd-is-inherited tsd-is-external"><div class="tsd-signature tsd-anchor-link" id="then-1"><span class="tsd-kind-call-signature">then</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">=</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">,</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a> <span class="tsd-signature-symbol">=</span> <span class="tsd-signature-type">never</span><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">(</span><br/>    <span class="tsd-kind-parameter">onfulfilled</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">value</span><span class="tsd-signature-symbol">:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/>    <span class="tsd-kind-parameter">onrejected</span><span class="tsd-signature-symbol">?:</span> <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span><span class="tsd-signature-symbol">,</span><br/><span class="tsd-signature-symbol">)</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span><a href="#then-1" aria-label="Permalink" class="tsd-anchor-icon"><svg viewBox="0 0 24 24" aria-hidden="true"><use href="../assets/icons.svg#icon-anchor"></use></svg></a></div><div class="tsd-description"><div class="tsd-comment tsd-typography"><p>Attaches callbacks for the resolution and/or rejection of the Promise.</p>
</div><section class="tsd-panel"><h4>Type Parameters</h4><ul class="tsd-type-parameter-list"><li><span id="thentresult1"><span class="tsd-kind-type-parameter">TResult1</span> = <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a></span></li><li><span id="thentresult2"><span class="tsd-kind-type-parameter">TResult2</span> = <span class="tsd-signature-type">never</span></span></li></ul></section><div class="tsd-parameters"><h4 class="tsd-parameters-title">Parameters</h4><ul class="tsd-parameter-list"><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">onfulfilled</span>: <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">value</span><span class="tsd-signature-symbol">:</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#t">T</a><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a><span class="tsd-signature-symbol">&gt;</span></span><div class="tsd-comment tsd-typography"><p>The callback to execute when the Promise is resolved.</p>
</div><div class="tsd-comment tsd-typography"></div></li><li><span><code class="tsd-tag">Optional</code><span class="tsd-kind-parameter">onrejected</span>: <span class="tsd-signature-symbol">(</span><span class="tsd-kind-parameter">reason</span><span class="tsd-signature-symbol">:</span> <span class="tsd-signature-type">any</span><span class="tsd-signature-symbol">)</span> <span class="tsd-signature-symbol">=&gt;</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a> <span class="tsd-signature-symbol">|</span> <span class="tsd-signature-type">PromiseLike</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span></span><div class="tsd-comment tsd-typography"><p>The callback to execute when the Promise is rejected.</p>
</div><div class="tsd-comment tsd-typography"></div></li></ul></div><h4 class="tsd-returns-title">Returns <span class="tsd-signature-type">Promise</span><span class="tsd-signature-symbol">&lt;</span><a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult1">TResult1</a> <span class="tsd-signature-symbol">|</span> <a class="tsd-signature-type tsd-kind-type-parameter" href="#thentresult2">TResult2</a><span class="tsd-signature-symbol">&gt;</span></h4><p>A Promise for the completion of which ever callback is executed.</p>
<div class="tsd-comment tsd-typography"></div><aside class="tsd-sources"><p>Inherited from Promise.then</p><ul><li>Defined in docs/node_modules/typescript/lib/lib.es5.d.ts:1550</li></ul></aside></div></li></ul></section></section></details></div><div class="col-sidebar"><div class="page-menu"><div class="tsd-navigation settings"><details class="tsd-accordion"><summary class="tsd-accordion-summary"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg><h3>Settings</h3></summary><div class="tsd-accordion-details"><div class="tsd-filter-visibility"><span class="settings-label">Member Visibility</span><ul id="tsd-filter-options"><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-protected" name="protected"/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>Protected</span></label></li><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-inherited" name="inherited" checked/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>Inherited</span></label></li><li class="tsd-filter-item"><label class="tsd-filter-input"><input type="checkbox" id="tsd-filter-external" name="external"/><svg width="32" height="32" viewBox="0 0 32 32" aria-hidden="true"><rect class="tsd-checkbox-background" width="30" height="30" x="1" y="1" rx="6" fill="none"></rect><path class="tsd-checkbox-checkmark" d="M8.35422 16.8214L13.2143 21.75L24.6458 10.25" stroke="none" stroke-width="3.5" stroke-linejoin="round" fill="none"></path></svg><span>External</span></label></li></ul></div><div class="tsd-theme-toggle"><label class="settings-label" for="tsd-theme">Theme</label><select id="tsd-theme"><option value="os">OS</option><option value="light">Light</option><option value="dark">Dark</option></select></div></div></details></div><details open class="tsd-accordion tsd-page-navigation"><summary class="tsd-accordion-summary"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg><h3>On This Page</h3></summary><div class="tsd-accordion-details"><details open class="tsd-accordion tsd-page-navigation-section"><summary class="tsd-accordion-summary" data-key="section-Properties"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg>Properties</summary><div><a href="#tostringtag" class="tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>[to<wbr/>String<wbr/>Tag]</span></a><a href="#reject"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>reject</span></a><a href="#resolve"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Property"><use href="../assets/icons.svg#icon-1024"></use></svg><span>resolve</span></a></div></details><details open class="tsd-accordion tsd-page-navigation-section"><summary class="tsd-accordion-summary" data-key="section-Methods"><svg width="20" height="20" viewBox="0 0 24 24" fill="none" aria-hidden="true"><use href="../assets/icons.svg#icon-chevronDown"></use></svg>Methods</summary><div><a href="#catch" class="tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>catch</span></a><a href="#finally" class="tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>finally</span></a><a href="#then" class="tsd-is-inherited tsd-is-external"><svg class="tsd-kind-icon" viewBox="0 0 24 24" aria-label="Method"><use href="../assets/icons.svg#icon-2048"></use></svg><span>then</span></a></div></details></div></details></div><div class="site-menu"><nav class="tsd-navigation"><a href="../modules.html">@nats-io/nats-core</a><ul class="tsd-small-nested-navigation" id="tsd-nav-container"><li>Loading...</li></ul></nav></div></div></div><footer><p class="tsd-generator">Generated using <a href="https://typedoc.org/" target="_blank">TypeDoc</a></p></footer><div class="overlay"></div></body></html>