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<!DOCTYPE html> <html lang="en-US" dir="ltr"> <head> <base href="../../../../"> <noscript><meta http-equiv="refresh" content="0; URL=../../../../en-US/noscript.html"></noscript> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <title>IsMissing function</title> <link rel="shortcut icon" href="media/navigation/favicon.ico"> <link type="text/css" href="normalize.css" rel="Stylesheet"> <link type="text/css" href="prism.css" rel="Stylesheet"> <link type="text/css" href="default.css" rel="Stylesheet"> <script type="text/javascript" src="polyfills.js"></script><script type="text/javascript" src="languages.js"></script><script type="text/javascript" src="en-US/langnames.js"></script><script type="text/javascript" src="flexsearch.debug.js"></script><script type="text/javascript" src="prism.js"></script><script type="text/javascript" src="help2.js" defer></script><script type="text/javascript" src="a11y-toggle.js" defer></script><script type="text/javascript" src="paginathing.js" defer></script><script type="text/javascript" src="en-US/bookmarks.js" defer></script><script type="text/javascript" src="en-US/contents.js" defer></script><script type="text/javascript" src="help.js" defer></script><meta name="viewport" content="width=device-width,initial-scale=1"> </head> <body> <header id="TopLeftHeader"><a class="symbol" href="en-US/text/shared/05/new_help.html"><div></div></a><a class="logo" href="en-US/text/shared/05/new_help.html"><p dir="auto">LibreOffice 24.2 Help</p></a><div class="dropdowns"><div class="modules"> <button type="button" data-a11y-toggle="modules-nav" id="modules" aria-haspopup="true" aria-expanded="false" aria-controls="modules-nav">Module</button><nav id="modules-nav" hidden=""></nav> </div></div></header><aside class="leftside"><input id="accordion-1" name="accordion-menu" type="checkbox"><label for="accordion-1" dir="auto">Contents</label><div id="Contents" class="contents-treeview"></div></aside><div id="SearchFrame"><div id="Bookmarks"> <input id="search-bar" type="search" class="search" placeholder="Search in bookmarks for chosen module" dir="auto"><div class="nav-container" tabindex="0"><nav class="index" dir="auto"></nav></div> </div></div> <div id="DisplayArea" itemprop="softwareHelp" itemscope="true" itemtype="http://schema.org/SoftwareApplication"> <a name="ismissing"></a> <a name="bm_id3153527"></a><meta itemprop="keywords" content="IsMissing function"> <h1 id="hd_id3153527" dir="auto">IsMissing Function</h1> <p id="par_id3153825" class="paragraph" dir="auto">Tests if a function is called with an optional parameter.</p> <p id="par_id3150669" class="paragraph" dir="auto">See also: <a target="_top" href="en-US/text/sbasic/shared/03104100.html">Optional</a></p> <h2 id="hd_id3145611" dir="auto">Syntax:</h2> <div class="bascode" itemscope="true" itemtype="http://schema.org/SoftwareSourceCode" itemprop="codeSampleType" content="snippet" data-tooltip="Click on text to copy to clipboard"><pre dir="auto"><code class="language-visual-basic line-numbers"> IsMissing( ArgumentName ) </code></pre></div> <h2 id="hd_id3145069" dir="auto">Parameters:</h2> <p id="par_id3149457" class="paragraph" dir="auto"> <span class="emph">ArgumentName:</span> the name of an optional argument.</p> <p id="par_id3150398" class="paragraph" dir="auto">IsMissing returns True if no value has been passed for the ArgumentName; otherwise, it returns False.</p> <p id="par_id3148798" class="paragraph" dir="auto">See also <a target="_top" href="en-US/text/sbasic/guide/sample_code.html">Examples</a>.</p> <div class="embedded"> <a name="errorcode"></a> <h3 id="hd_id3152869" dir="auto">Error codes:</h3> </div> <div class="embedded"><p class="embedded" dir="auto">5 Invalid procedure call</p></div> </div> <div id="DonationFrame"></div> <footer><div id="DEBUG" class="debug"> <h3 class="bug">Help content debug info:</h3> <p dir="auto">This page is: <a href="https://opengrok.libreoffice.org/xref/help/source/text/sbasic/shared/03104000.xhp" target="_blank">/text/sbasic/shared/03104000.xhp</a></p> <p dir="auto">Title is: IsMissing function</p> <p id="bm_module" dir="auto"></p> <p id="bm_system" dir="auto"></p> <p id="bm_HID" dir="auto"></p> </div></footer> </body> </html>