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  <title>exists? (Lisp)</title>
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  <pre><span class="ruby-comment cmt"># File lib/facet/lisp.rb, line 266</span>
  <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">exists?</span>(<span class="ruby-identifier">pred</span>, <span class="ruby-identifier">list</span>)
    <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">null?</span>(<span class="ruby-identifier">list</span>)
      <span class="ruby-keyword kw">false</span>
    <span class="ruby-keyword kw">else</span>
      <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">pred</span>.<span class="ruby-identifier">call</span>(<span class="ruby-identifier">car</span>(<span class="ruby-identifier">list</span>))
        <span class="ruby-keyword kw">true</span>
      <span class="ruby-keyword kw">else</span>
        <span class="ruby-identifier">exists?</span>(<span class="ruby-identifier">pred</span>, <span class="ruby-identifier">cdr</span>(<span class="ruby-identifier">list</span>))
      <span class="ruby-keyword kw">end</span>
    <span class="ruby-keyword kw">end</span>
  <span class="ruby-keyword kw">end</span></pre>
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Version data entries

3 entries across 3 versions & 1 rubygems

Version Path
facets-0.7.0 doc/main-rdoc/classes/Lisp.src/M000471.html
facets-0.7.1 doc/main-rdoc/classes/Lisp.src/M000471.html
facets-0.7.2 doc/main-rdoc/classes/Lisp.src/M000483.html