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cannot load such file — bundler/setup (LoadError)
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It could be that there was a previous Ruby env installed on your system prior to your installation of 2.0? This might have had an existing GEM_PATH that lead to the /1.8 directory which the installation of version 2.0 simply kept.
The problem you where likely having, then, ...
Why does one often see “null != variable” instead of “variable != null” in C#?
...r (and is indeed legal code):
// Probably wrong
if (x = 5)
when you actually probably meant
if (x == 5)
You can work around this in C by doing:
if (5 == x)
A typo here will result in invalid code.
Now, in C# this is all piffle. Unless you're comparing two Boolean values (which is rare, IME...
Check if a div exists with jquery [duplicate]
...re using jQuery I don't see any reason to use getElementById, unless you really need the performance improvement (e.g. it's in a long loop or something, though I can't think of how this would come up, that you need to run thousands of select queries over and over). It's just much more verbose, over ...
Canary release strategy vs. Blue/Green
...old until someone flips a feature toggle. Breaking your application into small, independently releaseable services is another, since there is less to test and less that can break.
You need to do a canary release if you're not completely certain that the new version will function correctly in produc...
Concatenating multiple text files into a single file in Bash
What is the quickest and most pragmatic way to combine all *.txt file in a directory into one large text file?
12 Answers
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Why does C++ not allow inherited friendship?
Why is friendship not at least optionally inheritable in C++? I understand transitivity and reflexivity being forbidden for obvious reasons (I say this only to head off simple FAQ quote answers), but the lack of something along the lines of virtual friend class Foo; puzzles me. Does anyone know ...
Bootstrap close responsive menu “on click”
... </li>
</ul>
</div>
Binding click event on all a elements in navigation to collapse menu (Bootstrap collapse plugin):
$(function(){
var navMain = $("#nav-main");
navMain.on("click", "a", null, function () {
navMain.collapse('hide');
});
});...
How can I disable ARC for a single file in a project?
... objects) where the rules of ARC are a little more fragile right now. I recall hearing that there was a way to disable ARC on a per-file basis, though I have been unable to find this option.
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When to use Mockito.verify()?
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If the contract of class A includes the fact that it calls method B of an object of type C, then you should test this by making a mock of type C, and verifying that method B has been called.
This implies that the contract of class A has sufficient detail that it talks about typ...
error: use of deleted function
...e X::x is const, it must be initialized -- but a default ctor wouldn't normally initialize it (because it's a POD type). Therefore, to get a default ctor, you need to define one yourself (and it must initialize x). You can get the same kind of situation with a member that's a reference:
class X {
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