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Rails 4: how to use $(document).ready() with turbo-links
I ran into an issue in my Rails 4 app while trying to organize JS files "the rails way". They were previously scattered across different views. I organized them into separate files and compile them with the assets pipeline. However, I just learned that jQuery's "ready" event doesn't fire on subseque...
Why is address zero used for the null pointer?
In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn't dangerous; when I call malloc it returns a pointer with the value zero if it can't get me memory; I use ...
error: ‘NULL’ was not declared in this scope
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NULL is not a keyword. It's an identifier defined in some standard headers. You can include
#include <cstddef>
To have it in scope, including some other basics, like std::size_t.
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Find which commit is currently checked out in Git
...ifferent ways to view the commit you currently have checked out into your working copy during a git bisect session (note that options 1-4 will also work when you're not doing a bisect):
git show.
git log -1.
Bash prompt.
git status.
git bisect visualize.
I'll explain each option in detail below....
Proper way to add svn:executable
I have a few files that have been executable before svn adding them. They have the svn:executable property set. Now, a few other files were checked in without the executable bit do not have it, and I want to set the svn:executable property:
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What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
I came upon the Curry-Howard Isomorphism relatively late in my programming life, and perhaps this contributes to my being utterly fascinated by it. It implies that for every programming concept there exists a precise analogue in formal logic, and vice versa. Here's a "basic" list of such analogies...
Fastest way to convert an iterator to a list
Having an iterator object, is there something faster, better or more correct than a list comprehension to get a list of the objects returned by the iterator?
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Diff two tabs in Vim
...rent view vertically so you can open the second file there. The :diffthis (or short: :difft) command is then applied to each view.
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DateTime.ToString() format that can be used in a filename or extension?
...the DateTime methods I've tried output something with spaces and slashes. For instance:
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What is the difference between concurrency, parallelism and asynchronous methods?
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Concurrent and parallel are effectively the same principle as you correctly surmise, both are related to tasks being executed simultaneously although I would say that parallel tasks should be truly multitasking, executed "at the same time" whereas concurrent could mean that the tasks are sha...