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What is an example of the Liskov Substitution Principle?
... Liskov Substitution Principle (LSP) is a fundamental principle of object oriented design. What is it and what are some examples of its use?
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How can I add a help method to a shell script?
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here's an example for bash:
usage="$(basename "$0") [-h] [-s n] -- program to calculate the answer to life, the universe and everything
where:
-h show this help text
-s set the seed value (default: 42)"
seed=42
while getopts ':hs:' ...
Haskell export current module with additional imported module
Is it possible to write a module in Haskell, which re-exports a module in addition to exporting everything visible inside?
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CSS background image alt attribute
This is one I have not had to tackle before. I need to use alt tags on all images in a site including those used by CSS background-image attribute.
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How do I remove the space between inline/inline-block elements?
...wer has become rather popular, I'm rewriting it significantly.
Let's not forget the actual question that was asked:
How to remove the space between inline-block elements? I was hoping
for a CSS solution that doesn't require the HTML source code to be
tampered with. Can this issue be solved ...
Downcasting in Java
Upcasting is allowed in Java, however downcasting gives a compile error.
11 Answers
1...
C++ template typedef
...ation of typedef, allowing templates:
template <size_t N>
using Vector = Matrix<N, 1>;
The type Vector<3> is equivalent to Matrix<3, 1>.
In C++03, the closest approximation was:
template <size_t N>
struct Vector
{
typedef Matrix<N, 1> type;
};
Here, t...
Two color borders
Client wants two color borders for an embossed look. Can I do this on one element? I was hoping to avoid stacking two DOM elements with individual borders.
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How to install python3 version of package via pip on Ubuntu?
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This works for me. Two additions: You can leave the virtualenv with deactivate and python3 might be installed at a different location. Mine is at /usr/local/bin/python3, which you can find out with which python3
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Git: Permission denied (publickey) fatal - Could not read from remote repository. while cloning Git
I am unable to clone a Git repository, and getting this error:
30 Answers
30
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