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What's the role of GetHashCode in the IEqualityComparer in .NET?
...hat wants to use strings as keys but use case-insensitive comparisons. In order to make that work efficiently, the dictionary will need to have some form of hash function that will yield the same value for "Fox" and "FOX", but hopefully yield something else for "box" or "zebra". Since the GetHashC...
How do I append text to a file?
...ommand with sudo prepended. I recently found out this also works with nano etc (by accidentally trying to nano nano auth...)
– Sandra
May 11 '18 at 23:23
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The written versions of the logical operators
...al Studio (as of VS2013), you must set a specific compiler option (/Za) in order to support the alternative keywords (see stackoverflow.com/a/555524/368896). That presumably also has other impacts. So, in Visual Studio, it's not necessarily safe to take this advice.
– Dan Nis...
What is the difference between Class and Klass in ruby?
..., so you won't be able to have variables named def or module or if or end, etc - class is no different.
For example, consider the following:
def show_methods(class)
puts Object.const_get(class).methods.inspect
end
show_methods "Kernel"
Trying to run this results in an error, since you can't us...
Does a finally block run even if you throw a new Exception?
...nded for resource clean-up (closing DB connections, releasing file handles etc), not for must-run logic. If it must-run do it before the try-catch block, away from something that could throw an exception, as your intention is almost certainly functionally the same.
...
Beyond Stack Sampling: C++ Profilers
..., it handles all kinds of sampling profiler output (AQtime, Sleepy, XPerf, etc). Once the visualization has pointed out the offending function(s), jump back to the raw profile data to get better hints on what the real cause is.
The gprof2dot tool generates a dot graph description that you then feed...
I keep getting “Uncaught SyntaxError: Unexpected token o”
... working only with some files and only when loading the files in a certain order. I don't really know what caused it, but this fixed it. I changed the line above to
$('#load-file-iframe').contents().find('body').text()
once I noticed some garbage in the HTML response.
Long story short check ...
What's the difference between git reset --mixed, --soft, and --hard?
...you modify a file in your repository, the change is initially unstaged. In order to commit it, you must stage it—that is, add it to the index—using git add. When you make a commit, the changes that are committed are those that have been added to the index.
git reset changes, at minimum, where t...
How to get evaluated attributes inside a custom directive
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Cannot change column used in a foreign key constraint
...the referencing table structure. Innodb has int as internal type, smallint etc are shortcuts only
– Michel Feldheim
May 20 '18 at 7:10
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sho...