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C# int to byte[]
...endian way.
Now, you are most probably working on a little-endian machine and BitConverter.GetBytes() will give you the byte[] reversed. So you could try:
int intValue;
byte[] intBytes = BitConverter.GetBytes(intValue);
Array.Reverse(intBytes);
byte[] result = intBytes;
For the code to be most p...
Get all keys of an NSDictionary as an NSArray
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And if you want to get all keys and values, here's what you do:
for (NSString *key in dictionary) {
id value = dictionary[key];
NSLog(@"Value: %@ for key: %@", value, key);
}
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Python name mangling
... for sure a controversial way of doing things. Python newbies just hate it and even some old Python guys despise this default - but it is the default anyway, so I really recommend you to follow it, even if you feel uncomfortable.
If you really want to send the message "Can't touch this!" to your us...
Ruby on Rails: getting the max value from a DB column
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Assuming your model name is Bar and it has a column named bar, this should work:
Bar.maximum("bar")
See the excellent Rails Guides section on Calculations for more info.
share
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How do I use define_method to create class methods?
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I prefer using send to call define_method, and I also like to create a metaclass method to access the metaclass:
class Object
def metaclass
class << self
self
end
end
end
class MyClass
# Defines MyClass.my_method
self.metaclass.send(:defi...
Make page to tell browser not to cache/preserve input values
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I talk about checkboxes so I can't set value to "". And, does autocomplete off means not to store form input values "when user presses F5", not only "for dropdown autocompletion list"?
– queen3
Apr 23 '10 at 17:20
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How to start two threads at “exactly” the same time
The threads should start at same split second. I understand, if you do thread1.start() , it will take some milliseconds before the next execution of thread2.start() .
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How to write to a JSON file in the correct format
I am creating a hash in Ruby and want to write it to a JSON file, in the correct format.
4 Answers
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How do I get monitor resolution in Python?
...hon itself.
For multi-monitor setups, you can retrieve the combined width and height of the virtual monitor:
import ctypes
user32 = ctypes.windll.user32
screensize = user32.GetSystemMetrics(78), user32.GetSystemMetrics(79)
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How to plot multiple functions on the same figure, in Matplotlib?
How can I plot the following 3 functions (i.e. sin , cos and the addition), on the domain t , in the same figure?
3 Ans...