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How to open a file for both reading and writing?
Is there a way to open a file for both reading and writing?
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Difference between Mutable objects and Immutable objects [duplicate]
Any one please give the diff between Mutable objects and Immutable objects with example.
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Why would I ever use push_back instead of emplace_back?
...ush_back(x);
v.emplace_back(x);
After your optimizing compiler gets its hands on this, there is no difference between these two statements in terms of generated code. The traditional wisdom is that push_back will construct a temporary object, which will then get moved into v whereas emplace_back w...
Difference between \A \z and ^ $ in Ruby regular expressions
...ending on the regular expression for validation, you always want to use \A and \z. ^ and $ will only match up until a newline character, which means they could use an email like me@example.com\n<script>dangerous_stuff();</script> and still have it validate, since the regex only sees ever...
Understanding garbage collection in .NET
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You are being tripped up here and drawing very wrong conclusions because you are using a debugger. You'll need to run your code the way it runs on your user's machine. Switch to the Release build first with Build + Configuration manager, change the "Act...
Why is NaN not equal to NaN? [duplicate]
The relevant IEEE standard defines a numeric constant NaN (not a number) and prescribes that NaN should compare as not equal to itself. Why is that?
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How do I represent a hextile/hex grid in memory?
...Amit Patel has posted an amazing page on this topic. It's so comprehensive and wonderful that it needs to be the definitive answer to this question: Hexagonal Grids
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What is the difference between an expression and a statement in Python?
In Python, what is the difference between expressions and statements?
14 Answers
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Install tkinter for Python
...ebian-derived distributions like for Ubuntu; refer to your package manager and package list on other distributions.)
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NHibernate ISession Flush: Where and when to use it, and why?
...nfused is the use of session.Flush ,in conjunction with session.Commit , and session.Close .
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