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- <td><strong>Class</strong></td>
- <td class="class-name-in-header">Array</td>
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- <td><strong>In:</strong></td>
- <td>
- <a href="../files/lib/mcollective/monkey_patches_rb.html">
- lib/mcollective/monkey_patches.rb
- </a>
- <br />
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- Object
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- <p>
-a method # that walks an array in groups, pass a block to call the block on
-each sub array
-</p>
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- <h3 class="section-bar">Methods</h3>
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- <a href="#M000013">in_groups_of</a>
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- <div id="method-M000013" class="method-detail">
- <a name="M000013"></a>
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- <a href="#M000013" class="method-signature">
- <span class="method-name">in_groups_of</span><span class="method-args">(chunk_size, padded_with=nil) {|a| ...}</span>
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-<pre>
- <span class="ruby-comment cmt"># File lib/mcollective/monkey_patches.rb, line 29</span>
-29: <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">in_groups_of</span>(<span class="ruby-identifier">chunk_size</span>, <span class="ruby-identifier">padded_with</span>=<span class="ruby-keyword kw">nil</span>, <span class="ruby-operator">&</span><span class="ruby-identifier">block</span>)
-30: <span class="ruby-identifier">arr</span> = <span class="ruby-keyword kw">self</span>.<span class="ruby-identifier">clone</span>
-31:
-32: <span class="ruby-comment cmt"># how many to add</span>
-33: <span class="ruby-identifier">padding</span> = <span class="ruby-identifier">chunk_size</span> <span class="ruby-operator">-</span> (<span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">%</span> <span class="ruby-identifier">chunk_size</span>)
-34:
-35: <span class="ruby-comment cmt"># pad at the end</span>
-36: <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">concat</span>([<span class="ruby-identifier">padded_with</span>] <span class="ruby-operator">*</span> <span class="ruby-identifier">padding</span>) <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">padding</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">chunk_size</span>
-37:
-38: <span class="ruby-comment cmt"># how many chunks we'll make</span>
-39: <span class="ruby-identifier">count</span> = <span class="ruby-identifier">arr</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">/</span> <span class="ruby-identifier">chunk_size</span>
-40:
-41: <span class="ruby-comment cmt"># make that many arrays</span>
-42: <span class="ruby-identifier">result</span> = []
-43: <span class="ruby-identifier">count</span>.<span class="ruby-identifier">times</span> {<span class="ruby-operator">|</span><span class="ruby-identifier">s</span><span class="ruby-operator">|</span> <span class="ruby-identifier">result</span> <span class="ruby-operator"><<</span> <span class="ruby-identifier">arr</span>[<span class="ruby-identifier">s</span> <span class="ruby-operator">*</span> <span class="ruby-identifier">chunk_size</span>, <span class="ruby-identifier">chunk_size</span>]}
-44:
-45: <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">block_given?</span>
-46: <span class="ruby-identifier">result</span>.<span class="ruby-identifier">each_with_index</span> <span class="ruby-keyword kw">do</span> <span class="ruby-operator">|</span><span class="ruby-identifier">a</span>, <span class="ruby-identifier">i</span><span class="ruby-operator">|</span>
-47: <span class="ruby-keyword kw">case</span> <span class="ruby-identifier">block</span>.<span class="ruby-identifier">arity</span>
-48: <span class="ruby-keyword kw">when</span> <span class="ruby-value">1</span>
-49: <span class="ruby-keyword kw">yield</span>(<span class="ruby-identifier">a</span>)
-50: <span class="ruby-keyword kw">when</span> <span class="ruby-value">2</span>
-51: <span class="ruby-keyword kw">yield</span>(<span class="ruby-identifier">a</span>, (<span class="ruby-identifier">i</span> <span class="ruby-operator">==</span> <span class="ruby-identifier">result</span>.<span class="ruby-identifier">size</span> <span class="ruby-operator">-</span> <span class="ruby-value">1</span>))
-52: <span class="ruby-keyword kw">else</span>
-53: <span class="ruby-identifier">raise</span> <span class="ruby-node">"Expected 1 or 2 arguments, got #{block.arity}"</span>
-54: <span class="ruby-keyword kw">end</span>
-55: <span class="ruby-keyword kw">end</span>
-56: <span class="ruby-keyword kw">else</span>
-57: <span class="ruby-identifier">result</span>
-58: <span class="ruby-keyword kw">end</span>
-59: <span class="ruby-keyword kw">end</span>
-</pre>
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