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<title>Uuid.v4 — Ludic</title>
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<meta name="description" content="Explicit alias for Uuid.new — a random (v4) UUID.">
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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-uuid.html">Uuid</a> <span>›</span> <span class="here">Uuid.v4</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">Uuid.v4</h1>
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</div>
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<code class="sig">Uuid.v4() -> string</code>
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<div class="desc"><p>An explicit alias for <a href="uuid-new"><code>Uuid.new</code></a>: generates a **v4** (random) UUID in canonical lowercase text form. Use this spelling when the surrounding code also uses <a href="uuid-v7"><code>Uuid.v7</code></a> and naming both by version reads more clearly than <code>new</code> versus <code>new_v7</code>. The behaviour, entropy, and non-determinism caveat are identical to <code>Uuid.new</code>.</p></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program V4 {
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entry {
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let a = Uuid.v4()
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let b = Uuid.v4()
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if a != b { print(1) } # two draws differ
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}
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}</pre></div>
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