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Is it better to call ToList() or ToArray() in LINQ queries?
...o meet other constraints you should use ToList. In the majority of scenarios ToArray will allocate more memory than ToList.
Both use arrays for storage, but ToList has a more flexible constraint. It needs the array to be at least as large as the number of elements in the collection. If the arr...
Why are dashes preferred for CSS selectors / HTML attributes?
...id attributes in HTML. Over the last few years I changed over to dashes, mostly to align myself with the trend in the community , not necessarily because it made sense to me.
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Get MD5 hash of big files in Python
...(rootdir, filename, blocksize=2**20):
m = hashlib.md5()
with open( os.path.join(rootdir, filename) , "rb" ) as f:
while True:
buf = f.read(blocksize)
if not buf:
break
m.update( buf )
return m.hexdigest()
The update above was ...
Does Django scale? [closed]
I'm building a web application with Django. The reasons I chose Django were:
29 Answers
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Fatal Error: Allowed Memory Size of 134217728 Bytes Exhausted (CodeIgniter + XML-RPC)
I have a bunch of client point of sale (POS) systems that periodically send new sales data to one centralized database, which stores the data into one big database for report generation.
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What is the common header format of Python files?
I came across the following header format for Python source files in a document about Python coding guidelines:
4 Answers
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Weak and strong property setter attributes in Objective-C
...give best answers here!!
Variable property attributes or Modifiers in iOS
01.strong (iOS4 = retain )
- it says "keep this in the heap until I don't point to it anymore"
- in other words " I'am the owner, you cannot dealloc this before aim fine with that same as retain"
- You use st...
How to call a SOAP web service on Android [closed]
...lable there, but I agree that a better library should be available. It is possible that the XmlPullParser will save you from using SAX, but I don't know much about that.
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What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
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Copied verbatim from http://cocoaheads.tumblr.com/post/17757846453/objective-c-literals-for-nsdictionary-nsarray-and:
Objective-C literals: one can now create literals for NSArray, NSDictionary, and NSNumber (just like one can create literals for NSString)
NSArray Literals
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How can I plot with 2 different y-axes?
I would like superimpose two scatter plots in R so that each set of points has its own (different) y-axis (i.e., in positions 2 and 4 on the figure) but the points appear superimposed on the same figure.
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