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Mark Pilgrim
2009-09-25 22:47:31 -04:00
parent efc38af072
commit 97f2e06ad6
1 changed files with 4 additions and 4 deletions
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comprehensions.html
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@@ -192,12 +192,12 @@ body{counter-reset:h1 3}
<p>A <dfn>list comprehension</dfn> provides a compact way of mapping a list into another list by applying a function to each of the elements of the list.
<pre class=screen>
<samp class=p>>>> </samp><kbd>a_list = [1, 9, 8, 4]</kbd>
<a><samp class=p>>>> </samp><kbd>[elem * 2 for elem in a_list]</kbd> <span class=u>&#x2460;</span></a>
<samp class=p>>>> </samp><kbd class=pp>a_list = [1, 9, 8, 4]</kbd>
<a><samp class=p>>>> </samp><kbd class=pp>[elem * 2 for elem in a_list]</kbd> <span class=u>&#x2460;</span></a>
<samp class=pp>[2, 18, 16, 8]</samp>
<a><samp class=p>>>> </samp><kbd>a_list</kbd> <span class=u>&#x2461;</span></a>
<a><samp class=p>>>> </samp><kbd class=pp>a_list</kbd> <span class=u>&#x2461;</span></a>
<samp class=pp>[1, 9, 8, 4]</samp>
<a><samp class=p>>>> </samp><kbd>a_list = [elem * 2 for elem in a_list]</kbd> <span class=u>&#x2462;</span></a>
<a><samp class=p>>>> </samp><kbd class=pp>a_list = [elem * 2 for elem in a_list]</kbd> <span class=u>&#x2462;</span></a>
<samp class=p>>>> </samp><kbd>a_list</kbd>
<samp class=pp>[2, 18, 16, 8]</samp></pre>
<ol>