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Difference between ObservableCollection and BindingList
I want to know the difference between ObservableCollection and BindingList because I've used both to notify for any add/delete change in Source, but I actually do not know when to prefer one over the other.
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Detecting endianness programmatically in a C++ program
... need to be able to write code that will execute on an Intel or PPC system and use exactly the same code (i.e. no conditional compilation).
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What is more efficient? Using pow to square or just multiply it with itself?
What of these two methods is in C more efficient? And how about:
7 Answers
7
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what is the difference between 'transform' and 'fit_transform' in sklearn
In the sklearn-python toolbox, there are two functions transform and fit_transform about sklearn.decomposition.RandomizedPCA . The description of two functions are as follows
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Determining 32 vs 64 bit in C++
...he major compilers use for determining if it's a 64 bit environment or not and use that to set my variables.
// Check windows
#if _WIN32 || _WIN64
#if _WIN64
#define ENVIRONMENT64
#else
#define ENVIRONMENT32
#endif
#endif
// Check GCC
#if __GNUC__
#if __x86_64__ || __ppc64__
#define ENVIRONMENT6...
Asking the user for input until they give a valid response
...put the input method in a while loop. Use continue when you get bad input, and break out of the loop when you're satisfied.
When Your Input Might Raise an Exception
Use try and except to detect when the user enters data that can't be parsed.
while True:
try:
# Note: Python 2.x users s...
Eclipse error: 'Failed to create the Java Virtual Machine'
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This will only work if the problem was not enough memory and if you lower the values in eclipse.ini. Raising them will only make this issue more probable to occur.
– Stijn de Witt
Feb 18 '13 at 14:17
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Parsing JSON with Unix tools
...ls specifically designed for the purpose of manipulating JSON from the command line, and will be a lot easier and more reliable than doing it with Awk, such as jq:
curl -s 'https://api.github.com/users/lambda' | jq -r '.name'
You can also do this with tools that are likely already installed on yo...
Jasmine JavaScript Testing - toBe vs toEqual
....g. numbers, booleans, strings, etc.), there is no difference between toBe and toEqual; either one will work for 5, true, or "the cake is a lie".
To understand the difference between toBe and toEqual, let's imagine three objects.
var a = { bar: 'baz' },
b = { foo: a },
c = { foo: a };
Using...
How can I deploy/push only a subdirectory of my git repo to Heroku?
I have a project that uses Serve and is version controlled using Git. Serve creates an output folder with static files that I want to deploy to Heroku.
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