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Declaration/definition of variables locations in ObjectiveC?
Ever since starting to work on iOS apps and objective C I've been really puzzled by the different locations where one could be declaring and defining variables. On one hand we have the traditional C approach, on the other we have the new ObjectiveC directives that add OO on top of that. Could you fo...
How to convert comma-delimited string to list in Python?
...igit() else e for e in mStr.split(',')]
It is called list comprehension, and it is based on set builder notation.
ex:
>>> mStr = "1,A,B,3,4"
>>> mList = [int(e) if e.isdigit() else e for e in mStr.split(',')]
>>> mList
>>> [1,'A','B',3,4]
...
How to free memory in Java?
...n Java, similar to C's free() function? Or is setting the object to null and relying on GC the only option?
13 Answers
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What Haskell representation is recommended for 2D, unboxed pixel arrays with millions of pixels?
...ge-processing problems in Haskell. I'm working with both bitonal (bitmap) and color images with millions of pixels. I have a number of questions:
...
Difference between CouchDB and Couchbase
Are there any essential differences between CouchDB and Couchbase .
3 Answers
3
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What's invokedynamic and how do I use it?
...ep hearing about all the new cool features that are being added to the JVM and one of those cool features is invokedynamic. I would like to know what it is and how does it make reflective programming in Java easier or better?
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A gentle tutorial to Emacs/Swank/Paredit for Clojure
...
[Edit from non-author: this is from 2010, and the process has been significantly simplified since May 2011. I'll add a post to this answer with my setup notes as of Feb 2012.]
You'll need to put together a few pieces: Emacs, SLIME (which works perfectly well with Cl...
How do I add a ToolTip to a control?
...Form1_Load(object sender, System.EventArgs e)
{
// Create the ToolTip and associate with the Form container.
ToolTip toolTip1 = new ToolTip();
// Set up the delays for the ToolTip.
toolTip1.AutoPopDelay = 5000;
toolTip1.InitialDelay = 1000;
toolTip1.ReshowDelay = 500;
...
Why does base64 encoding require padding if the input length is not divisible by 3?
...ence is lost. However, if padded sequences are used, there's no ambiguity, and the sequence as a whole can be decoded correctly.
Edit: An Illustration
Suppose we have a program that base64-encodes words, concatenates them and sends them over a network. It encodes "I", "AM" and "TJM", sandwiches th...
How do I make a reference to a figure in markdown using pandoc?
I'm currently writing a document in markdown and I'd like to make a reference to an image from my text.
6 Answers
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