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How to use the IEqualityComparer
... it actually does is called cargo cult programming. It’s a surprisingly widespread practice. It fundamentally doesn’t work.
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Setting up a JavaScript variable from Spring model by using Thymeleaf
...faultanyvalue will only be used when running the page statically, i.e. outside a web container. If ran inside a container and the variable message hasn't been declared the resulting source code will be var message = null;
– Felipe Leão
May 10 '17 at 17:51
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Pythonic way of checking if a condition holds for any element of a list
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Correction: If you're going to use True in ..., reconsider and use any instead.
– Aran-Fey
Sep 6 '18 at 20:42
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How do I test a file upload in rails?
...le.new(Rails.root.join("test/fixtures/files/test.jpg"))
})
assert model.valid?
This way you can use the same methods you are using in your validations (as for example tempfile).
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What's the difference between lapply and do.call?
... here is lapply:
lapply(iris, class)
$Sepal.Length
[1] "numeric"
$Sepal.Width
[1] "numeric"
$Petal.Length
[1] "numeric"
$Petal.Width
[1] "numeric"
$Species
[1] "factor"
And the same using Map:
Map(class, iris)
$Sepal.Length
[1] "numeric"
$Sepal.Width
[1] "numeric"
$Petal.Length
[1] "numeri...
Declaring a default constraint when creating a table
... square brackets rather than quotes as many readers won't work with QUOTED_IDENTIFIERS on by default.
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Converting from Integer, to BigInteger
...eger the intValue() will not overflow, so the call to valueOf will simply widen the int to a long. There's no noticeable difference between using longValue() and intValue() in this example, but if he started with a Long, he would want to use longValue().
– jbindel
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How to copy files between two nodes using ansible
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good answer! Unfortunately I did not get it working in an Vagrant environment with multi VMs. Seems Vagrant does something special there.
– therealmarv
Mar 5 '15 at 6:56
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No route matches “/users/sign_out” devise rails 3
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I did the test and it works for me. Don't forget that things change from one version to another (be it in Rails or Devise). Besides, logging out is state-changing behaviour which should not be done using GET methods (in my humb...
Syntax highlighting/colorizing cat
... "cat is not meant for that." Cat isn't meant for writing individual files to stdout either - it's for concatenation. But that still doesn't mean that writing individual files to stdout isn't useful. Not does that mean highlighting them isn't useful.
– mikemaccana
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