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Trouble comparing time with RSpec
...ect maintains greater precision than the database does. When the value is read back from the database, it’s only preserved to microsecond precision, while the in-memory representation is precise to nanoseconds.
If you don't care about millisecond difference, you could do a to_s/to_i on both side...
Orchestration vs. Choreography
.... However, I realised that this answer was 2 years ago when I just started reading about service composition. I will update this answer with references and expand on the proprieties of both
– Andrei
May 26 '17 at 17:19
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What is “:-!!” in C code?
...ccasional discussions about whether this is a confusing name.)
You should read the expression like this:
sizeof(struct { int: -!!(e); }))
(e): Compute expression e.
!!(e): Logically negate twice: 0 if e == 0; otherwise 1.
-!!(e): Numerically negate the expression from step 2: 0 if it was 0; oth...
Multiple types were found that match the controller named 'Home'
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@ppumkin tell that to a blind programmer. The text can be read by screen readers though
– Carlos Muñoz
Mar 17 '19 at 17:34
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jquery $(window).width() and $(window).height() return different values when viewport has not been r
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Try to use a
$(window).load event
or
$(document).ready
because the initial values may be inconstant because of changes that occur during the parsing or during the DOM load.
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How do you prevent install of “devDependencies” NPM modules for Node.js (package.json)?
...ll yourpackage.tgz don't also get the devDependencies. However, that is already the case. See Kevin Cox's answer below (stackoverflow.com/a/15826602/825588).
– Johann
Aug 27 '13 at 23:51
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How do you get the logical xor of two variables in Python?
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If you're already normalizing the inputs to booleans, then != is xor.
bool(a) != bool(b)
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Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib
...es (x86) subdirectory is a rock hard requirement. Starting at .NET 4.0, already important to avoid accidentally taking a dependency on a class or method that was added in the 4.01, 4.02 and 4.03 releases. But absolutely essential now that 4.5 is released.
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@Basic(optional = false) vs @Column(nullable = false) in JPA
...). (e.g. entityManager.persist calls).
So I went to the specification and read up about it.
Here is what the spec has to say:
http://download.oracle.com/otndocs/jcp/persistence-2.0-fr-oth-JSpec/
Basic(optional): Whether the value of the field or property may be
null. This is a hint and is dis...
Difference between app.use and app.get in express.js
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It's not that simple. Read other answers.
– David Lopez
Jun 17 at 16:24
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