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How are Python's Built In Dictionaries Implemented?
Does anyone know how the built in dictionary type for python is implemented? My understanding is that it is some sort of hash table, but I haven't been able to find any sort of definitive answer.
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jQuery: serialize() form and other parameters
Is it possible to send form elements (serialized with .serialize() method) and other parameters with a single AJAX request?
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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...an object can never be created directly, but only via some method of a factory class. Let us say I have some "business object" class and I want to make sure any instance of this class will have a valid internal state. In order to achieve this I will need to perform some check before creating an obje...
How can I get the font size and font name of a UILabel?
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Does not work. I can write text in it, but the fontName and pointSize is null.
– Tim
Feb 2 '11 at 9:18
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Read a file line by line assigning the value to a variable
...t read from file: $line"
done < my_filename.txt
This is the standard form for reading lines from a file in a loop. Explanation:
IFS= (or IFS='') prevents leading/trailing whitespace from being trimmed.
-r prevents backslash escapes from being interpreted.
Or you can put it in a bash file he...
Difference between virtual and abstract methods [duplicate]
...n of overriding it. Abstract methods do not provide an implementation and force the derived classes to override the method.
So, abstract methods have no actual code in them, and subclasses HAVE TO override the method. Virtual methods can have code, which is usually a default implementation of some...
Ubuntu says “bash: ./program Permission denied” [closed]
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chmod u+x program_name. Then execute it.
If that does not work, copy the program from the USB device to a native volume on the system. Then chmod u+x program_name on the local copy and execute that.
Unix and Unix-like systems generally will not execute a program unless it is marked ...
How do I get both STDOUT and STDERR to go to the terminal and a log file?
...ve to redirect stderr to stdout using
./a.out 2>&1 | tee output
or
./a.out |& tee output
In csh, there is a built-in command called "script" that will capture everything that goes to the screen to a file. You start it by typing "script", then doing whatever it is you want to capt...
Hour from DateTime? in 24 hours format
...Time? and what i want to do is to obtain the hour but show it in 24 hours format.
For example:
If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it.
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How to vertical align an inline-block in a line of text?
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code {
background: black;
color: white;
display: inline-block;
vertical-align: middle;
}
<p>Some text <code>A<br />B<br />C<br />D</code> continues afterward.</p>
Tested and works in Safari 5 a...