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<div class="backlinks"><a href="doc.html">TMBASIC Documentation</a> <wbr>► <a href="procedures_sets.html">Procedures: Sets</a></div><h1><span class="tt">Contains</span> Procedure</h1>Checks whether a set contains a given key.<div class="bar"><span>Declaration</span></div><div class="code"><div>function Contains(</div><div><span class="indent">    </span>set as Set of T, key as T</div><div>) as Boolean</div></div><h3>Parameters</h3><ul><li><i>set</i> as <a href="type_set.html">Set of T</a> — Any kind of set.</li><li><i>key</i> as <a href="type_t.html">T</a> — The key to check for.</li></ul><h3>Return value</h3><a href="type_boolean.html">Boolean</a> — True if the set contains the key, false otherwise.<h3>Example</h3><div class="bar"><span>Code</span></div><div class="code"><div>dim set mySet</div><div><span class="indent">    </span>yield <span class="string">"aaa"</span></div><div><span class="indent">    </span>yield <span class="string">"bbb"</span></div><div>end dim</div><div>print Contains(mySet, <span class="string">"aaa"</span>)</div><div>print Contains(mySet, <span class="string">"ccc"</span>)</div></div><div class="bar"><span>Output</span></div><div class="code"><div>true</div><div>false</div></div>
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