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What does the unary plus operator do?
...r than the operator itself. For example, it can be used to force widening from smaller integral types to int, or ensure that an expression's result is treated as an rvalue and therefore not compatible with a non-const reference parameter. I submit, however, that these uses are better suited to cod...
In plain English, what does “git reset” do?
...t there's no branch pointing to it anymore
Digression: This is different from a checkout. If you'd run git checkout B, you'd get this:
- A - B (HEAD) - C (master)
You've ended up in a detached HEAD state. HEAD, work tree, index all match B, but the master branch was left behind at C. If you mak...
Should I use SVN or Git? [closed]
...tion since then deleted about Git vs. SVN (September 2009).
Better? Aside from the usual link WhyGitIsBetterThanX, they are different:
one is a Central VCS based on cheap copy for branches and tags
the other (Git) is a distributed VCS based on a graph of revisions.
See also Core concepts of VCS.
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What is a Shim?
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From Wikipedia:
In computer programming, a shim is a small library that transparently intercepts an API, changing the parameters passed, handling the operation itself, or redirecting the operation elsewhere. Shims typical...
What is the benefit of using $() instead of backticks in shell scripts?
...ir directory tree which have the same name as the earliest dated text file from December 2011 (a).
Another example would be something like getting the name (not the full path) of the parent directory:
pax> cd /home/pax/xyzzy/plugh
pax> parent=$(basename $(dirname $PWD))
pax> echo $parent
...
Why use Ruby instead of Smalltalk? [closed]
Ruby is becoming popular , largely from the influence Ruby on Rails, but it feels like it is currently struggling through its adolescence. There are a lot of similarities between Ruby and Smalltalk -- maglev is a testament to that. Despite having a more unusual syntax, Smalltalk has all (if not m...
What does “./” (dot slash) refer to in terms of an HTML file path location?
... is the css folder.
This is important to remember because if you move CSS from /index.htm to /css/style.css the path will change.
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What's wrong with overridable method calls in constructors?
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On invoking overridable method from constructors
Simply put, this is wrong because it unnecessarily opens up possibilities to MANY bugs. When the @Override is invoked, the state of the object may be inconsistent and/or incomplete.
A quote from Effective ...
Prevent scroll-bar from adding-up to the Width of page on Chrome
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Webkit browsers like Safari and Chrome subtract the scroll bar width from the visible page width when calculating width: 100% or 100vw. More at DM Rutherford's Scrolling and Page Width.
Try using overflow-y: overlay instead.
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Remove refs/original/heads/master from git repo after filter-branch --tree-filter?
...e)" refs/original/ | xargs -n 1 git update-ref -d
(That's taken directly from the filter-branch manpage.)
This doesn't apply to you, but to others who may find this: If you do a filter-branch which removes content taking up significant disk space, you might also want to run git reflog expire --ex...