33 lines
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1.8 KiB
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33 lines
No EOL
1.8 KiB
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<title>Os.arg — Ludic</title>
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<meta name="description" content="The i-th command-line argument.">
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<header class="nav"><div class="wrap nav-in"><a class="brand" href="index.html"><span class="logo">L</span> Ludic</a><button class="nav-toggle" aria-label="Toggle menu" aria-expanded="false">☰</button><nav class="nav-links"><a href="index.html">Home</a><a href="api.html">API Reference</a><a class="nav-cta" href="https://git.workshopsoft.io/workshopsoft/ludic">Source ↗</a></nav></div></header>
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<div class="crumbs"><a href="api.html">API Reference</a> <span>›</span> <a href="ns-os.html">Os</a> <span>›</span> <span class="here">Os.arg</span></div>
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<div class="item-head">
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<span class="kind-badge kind-method">method</span>
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<h1 id="top">Os.arg</h1>
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<code class="sig">Os.arg(i) -> string</code>
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<div class="desc"><p>The argument at index <code>i</code>. Index <code>0</code> is the program path; <code>1</code> onward are the launch arguments. Reading past <a href="os-arg_count"><code>arg_count()</code></a> is out of bounds.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-i"><code class="pname">i</code><span class="pdesc">the argument index (0 = the program path)</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Arg {
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entry {
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let prog = Os.arg(0) # the program path
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print(len(prog))
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}
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}</pre></div>
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