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Passing a String by Reference in Java?
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zText[0] = "";
void fillString(String[] zText) { zText[0] += "foo"; }
From a performance point of view, the StringBuilder is usually the best option.
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How to shift a column in Pandas DataFrame
...in a Pandas DataFrame , but I haven't been able to find a method to do it from the documentation without rewriting the whole DF. Does anyone know how to do it?
DataFrame:
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How to create a file with a given size in Linux?
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Setting count=0 avoids having to subtract a byte from the file size.
– andrewdotn
Sep 28 '08 at 1:42
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Does the default constructor initialize built-in types?
...ater end up in a situation where you expect zeroes but a non-zero leftover from an earlier object sits.
So, why is this then, isn't all new-ed data newly allocated? Yes, but not always from the OS. The OS tends to work with larger chunks of memory (e.g. 4MB at a time) so all the tiny one-word-here-...
Is it considered acceptable to not call Dispose() on a TPL Task object?
... It goes against the MSDN documentation though. Is there any official word from MS or the .net team that this is acceptable code. There is also the point raised at the end of that discussion that "what if the implementation changes in a future version"
– Simon P Stevens
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Differences in string compare methods in C#
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From MSDN:
"The CompareTo method was designed primarily for use in sorting or
alphabetizing operations. It should not be used when the primary
purpose of the method call is to determine whether two strings ar...
Where's my JSON data in my incoming Django request?
... Django < 1.4). This will give you the raw JSON data sent via the post. From there you can process it further.
Here is an example using JavaScript, jQuery, jquery-json and Django.
JavaScript:
var myEvent = {id: calEvent.id, start: calEvent.start, end: calEvent.end,
allDay: calEv...
In C#, what happens when you call an extension method on a null object?
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Addition to the correct answer from Marc Gravell.
You could get a warning from the compiler if it is obvious that the this argument is null:
default(string).MyExtension();
Works well at runtime, but produces the warning "Expression will always cause a ...
CSS to stop text wrapping under image
...capable of triggering that behaviour. Quoting a presentation by Fiona Chan from Sydney Web Apps Group:
float: left / right
overflow: hidden / auto / scroll
display: table-cell and any table-related values / inline-block
position: absolute / fixed
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What's the difference between Unicode and UTF-8? [duplicate]
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disk.
All together now
Say an application reads the following from the disk:
1101000 1100101 1101100 1101100 1101111
The app knows this data represent a Unicode string encoded with
UTF-8 and must show this as text to the user. First step, is to
convert the binary data to numb...