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Java Map equivalent in C#
...HashCode() unless the default (reference or struct) equality is sufficient for determining equality of keys. You should also make your key type immutable to prevent weird things happening if a key is mutated after it has been inserted into a dictionary (e.g. because the mutation caused its hash cod...
What does 'wb' mean in this code, using Python?
...d or written.
This behind-the-scenes modification to
file data is fine for ASCII text
files, but it’ll corrupt binary data
like that in JPEG or EXE files.
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How to make a div grow in height while having floats inside
...w its height when it has floats inside of it? I know that defining a value for the width and setting overflow to hidden works. The problem is that I need a div with the overflow visible. Any ideas?
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Update git commit author date when amending
...amending my commits quite often. I don't stash so much because I tend to forget I did so, especially when I want to save what I did before I leave or before a weekend, so I do a "draft" commit. Only thing is, when I amend the commit, it is still set to the original author date. Is there a (simple)...
Format in kotlin string templates
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Unfortunately, there's no built-in support for formatting in string templates yet, as a workaround, you can use something like:
"pi = ${pi.format(2)}"
the .format(n) function you'd need to define yourself as
fun Double.form...
How can I divide two integers to get a double?
...ble. So, the following would work too:
double num3 = (double)num1/num2;
For more information see:
Dot Net Perls
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How to go up a level in the src path of a URL in HTML?
I am storing style sheets in {root}/styles while images in {root}/images for a website.
How do I give the path in the style sheets to go look in the images directory for the specified images?
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C/C++ NaN constant (literal)?
...eric_limits<double>::quiet_NaN() is declared in <limits>.
But for checking whether a value is NaN, you can't compare it with another NaN value. Instead use isnan() from <math.h> in C, or std::isnan() from <cmath> in C++.
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Why can't I call read() twice on an open file?
For an exercise I'm doing, I'm trying to read the contents of a given file twice using the read() method. Strangely, when I call it the second time, it doesn't seem to return the file content as a string?
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How to find a min/max with Ruby
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Ruby is mainly for the programmer not for the computer. In Matz's words "I hope to see Ruby help every programmer in the world to be productive, and to enjoy programming, and to be happy. That is the primary purpose of Ruby language." That'...