36 lines
No EOL
2.2 KiB
HTML
36 lines
No EOL
2.2 KiB
HTML
<!doctype html>
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<head>
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<title>Text.contains — Ludic</title>
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<meta name="description" content="Whether a substring appears anywhere in a string.">
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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-text.html">Text</a> <span>›</span> <span class="here">Text.contains</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">Text.contains</h1>
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</div>
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<code class="sig">Text.contains(s, sub) -> bool</code>
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<div class="desc"><p>Returns <code>true</code> when <code>sub</code> occurs anywhere inside <code>s</code>. An empty substring is always considered present. Use it for a quick membership test — filtering a log line, checking for a forbidden word, or seeing whether a path includes a folder — when you do not need the position. Reach for <code>Text.index_of</code> when you also want where it matched.</p></div>
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<div class="params"><h2>Parameters</h2><div class="param" id="param-s"><code class="pname">s</code><span class="pdesc">the string to search</span></div><div class="param" id="param-sub"><code class="pname">sub</code><span class="pdesc">the substring to look for</span></div></div>
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<div class="examples"><h2>Example</h2><pre data-lang="ludic">program Filter {
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var line: string = "error: disk full"
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handler Scan phase Update {
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if Text.contains(line, "error") {
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# flag it
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}
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}
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}</pre></div>
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