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C# elegant way to check if a property's property is null
...#, say that you want to pull a value off of PropertyC in this example and ObjectA, PropertyA and PropertyB can all be null.
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Generate a Hash from string in Javascript
I need to convert strings to some form of hash. Is this possible in JavaScript?
22 Answers
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What does enumerate() mean?
What does for row_number, row in enumerate(cursor): do in Python?
5 Answers
5
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Does C have a “foreach” loop construct?
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C doesn't have a foreach, but macros are frequently used to emulate that:
#define for_each_item(item, list) \
for(T * item = list->head; item != NULL; item = item->next)
And can be used like
for_each_item(i, processes) {
i->wakeup...
Convert a string to regular expression ruby
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Looks like here you need the initial string to be in single quotes (refer this page)
>> str = '[\w\s]+'
=> "[\\w\\s]+"
>> Regexp.new str
=> /[\w\s]+/
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Order of member constructor and destructor calls
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In other words, are members guaranteed to be initialized by order of declaration and destroyed in reverse order?
Yes to both. See 12.6.2
6 Initialization shall proceed in the
following order:
First, and only for
the constructor of the most deriv...
Auto-center map with multiple markers in Google Maps API v3
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There's an easier way, by extending an empty LatLngBounds rather than creating one explicitly from two points. (See this question for more details)
Should look something like this, added to your code:
//create empty LatLngBounds object
var bounds...
Fast Bitmap Blur For Android SDK
...lication that I'm developing I'm looping through the pixels of an image to blur it. This takes about 30 seconds on a 640x480 image.
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What is the difference between Python's list methods append and extend?
What's the difference between the list methods append() and extend() ?
20 Answers
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What's the difference between getRequestURI and getPathInfo methods in HttpServletRequest?
...s getRequestURI() gives the complete URI.
I would have thought they would be different, given a Servlet must be configured with its own URI pattern in the first place; I don't think I've ever served a Servlet from root (/).
For example if Servlet 'Foo' is mapped to URI '/foo' then I would have tho...