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What Does This Mean in PHP -> or => [duplicate]
I see these in PHP all the time but I don't have a clue as to what they actually mean. What does -> do and what does => do. And I'm not talking about the operators. They're something else, but nobody seems to know...
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C++ convert from 1 char to string? [closed]
...
All of
std::string s(1, c); std::cout << s << std::endl;
and
std::cout << std::string(1, c) << std::endl;
and
std::string s; s.push_back(c); std::cout << s << std::endl;
worked for...
How to do integer division in javascript (Getting division answer in int not float)? [duplicate]
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I find that this answer is even not correct all the time. If result is negative number, Math.floor() returns wrong result. So even Google will return a not-enogh-correct answer. Here: stackoverflow.com/questions/4228356/…
– Han
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Auto-loading lib files in Rails 4
.../foo.rb:
class Foo
end
in lib/foo/bar.rb:
class Foo::Bar
end
if you really wanna do some monkey patches in file like lib/extensions.rb, you may manually require it:
in config/initializers/require.rb:
require "#{Rails.root}/lib/extensions"
P.S.
Rails 3 Autoload Modules/Classes by Bill H...
What do the f and t commands do in Vim?
... information but people keep telling me that they are very useful. Would really appreciate an answer with an example if possible, thanks!
...
What is the advantage of using forwarding references in range-based for loops?
...or<bool> v(10);
for (auto&& e : v)
e = true;
}
All that being said, I wouldn't code this way unless you knew you needed to satisfy such a use case. I.e. I wouldn't do this gratuitously because it does cause people to wonder what you're up to. And if I did do it, it woul...
Moving from CVS to Git: $Id$ equivalent?
... for example, you packaged a version file with the source (or even rewrote all the content for distribution) to show that number. Let's say that packaged version was 2.2-12-g6c4ae7a (not a release, but a valid version).
You can now see exactly how far behind you are (4 commits), and you can see exa...
Revert a range of commits in git
...g for:
git revert B^..D
B^ means "the first parent commit of B": that allows to include B in the revert.
See "git rev-parse SPECIFYING REVISIONS section" which include the <rev>^, e.g. HEAD^ syntax: see more at "What does the caret (^) character mean?")
Note that each reverted commit is ...
No visible cause for “Unexpected token ILLEGAL”
... code is parsed by the JavaScript interpreter, it gets broken into pieces called "tokens". When a token cannot be classified into one of the four basic token types, it gets labelled "ILLEGAL" on most implementations, and this error is thrown.
The same error is raised if, for example, you try to run...
How to include layout inside layout?
...sing Layouts
Although Android offers a variety of widgets to provide small and
re-usable interactive elements, you might also need to re-use larger
components that require a special layout. To efficiently re-use
complete layouts, you can use the tag to embed another
layout inside the cu...