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What's the difference between using CGFloat and float?
...e types were introduced to make it easier to write code that works on both 32-bit and 64-bit without modification. However, if all you need is float precision within your own code, you can still use float if you like — it will reduce your memory footprint somewhat. Same goes for integer values.
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How do I negate a condition in PowerShell?
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edited May 19 '14 at 23:56
answered Nov 11 '11 at 14:54
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Assign output of os.system to a variable and prevent it from being displayed on the screen [duplicat
...is popen:
os.popen('cat /etc/services').read()
From the docs for Python 3.6,
This is implemented using subprocess.Popen; see that class’s
documentation for more powerful ways to manage and communicate with
subprocesses.
Here's the corresponding code for subprocess:
import subproce...
How do you 'redo' changes after 'undo' with Emacs?
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293
Short version: by undoing the undo. If you undo, and then do a non-editing command such as C-f, ...
How can I apply styles to multiple classes at once?
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583
.abc, .xyz { margin-left: 20px; }
is what you are looking for.
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Regular expression to match balanced parentheses
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Feb 13 '09 at 15:55
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Rails render partial with block
...iv class="v-panel">
<div class="v-panel-tr"></div>
<h3><%= title -%></h3>
<div class="v-panel-c">
<%= yield %>
</div>
</div>
share
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Discard all and get clean copy of latest revision?
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answered Feb 10 '11 at 13:42
Lasse V. KarlsenLasse V. Karlsen
337k9191 gold badges560560 silver badges760760 bronze badges
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Must qualify the allocation with an enclosing instance of type GeoLocation
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knownasilya
5,26744 gold badges3030 silver badges5858 bronze badges
answered Jul 17 '12 at 6:37
user1528582user1528582
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