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Iterate a list as pair (current, next) in Python
...this works:
First, two parallel iterators, a and b are created (the tee() call), both pointing to the first element of the original iterable. The second iterator, b is moved 1 step forward (the next(b, None)) call). At this point a points to s0 and b points to s1. Both a and b can traverse the ori...
Fastest way to check if a file exist using standard C++/C++11/C?
..._str(), &buffer) == 0);
}
Results for total time to run the 100,000 calls averaged over 5 runs,
Method exists_test0 (ifstream): **0.485s**
Method exists_test1 (FILE fopen): **0.302s**
Method exists_test2 (posix access()): **0.202s**
Method exists_test3 (posix stat()): **0.134s**
The stat()...
Removing an element from an Array (Java) [duplicate]
... that as an exercise too; currently, it will throw an NPE when it tries to call equals on deleteMe if deleteMe is null.)
Choices I made here:
I used a LinkedList. Iteration should be just as fast, and you avoid any resizes, or allocating too big of a list if you end up deleting lots of elements. Y...
Why are Python lambdas useful? [closed]
... things are actually quite useful. Python supports a style of programming called functional programming where you can pass functions to other functions to do stuff. Example:
mult3 = filter(lambda x: x % 3 == 0, [1, 2, 3, 4, 5, 6, 7, 8, 9])
sets mult3 to [3, 6, 9], those elements of the original ...
What are the real-world strengths and weaknesses of the many frameworks based on backbone.js? [close
... and then they communicate through various means of decoupled messages and calls.
I've written a little bit about this on my blog, introducing Marionette as a composite application architecture for Backbone:
http://lostechies.com/derickbailey/2011/11/17/introduction-to-composite-javascript-apps/...
TypeScript with KnockoutJS
...is why we use definition files for code written in JavaScript so as to provide typescript type checking. Of course you could declare libs as "any", but this is not good.hope I helped!
– George Mavritsakis
Dec 1 '12 at 16:03
...
How do you iterate through every file/directory recursively in standard C++?
...
In standard C++, technically there is no way to do this since standard C++ has no conception of directories. If you want to expand your net a little bit, you might like to look at using Boost.FileSystem. This has been accepted for inclusion in TR2,...
How to convert an Stream into a byte[] in C#? [duplicate]
...
Call next function like
byte[] m_Bytes = StreamHelper.ReadToEnd (mystream);
Function:
public static byte[] ReadToEnd(System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
...
How to encode a URL in Swift [duplicate]
...ters that are allowed in a URI but do not have a reserved
purpose are called unreserved. These include uppercase and lowercase
letters, decimal digits, hyphen, period, underscore, and tilde.
unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
Later, in section 3.4, the RFC furth...
How do you test that a Python function throws an exception?
... arguments to myfunc you need to add them as arguments to the assertRaises call. See Daryl Spitzer's answer.
– cbron
Feb 21 '18 at 16:43
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