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Disable single warning error
... clang doesn't seem to support this pragma, but you can achieve the same effect with #pragma clang diagnostic push, #pragma clang diagnostic ignored "-Wunused-variable", and #pragma clang diagnostic pop. See "Controlling Diagnositics Via Pragmas" in the Clang User's Manual
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Python locale error: unsupported locale setting
...part to the actual syntax found in the output of locale -a e.g. .utf8 on some systems.
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How do I see what character set a MySQL database / table / column is?
...chemas (or Databases - they are synonyms):
SELECT default_character_set_name FROM information_schema.SCHEMATA
WHERE schema_name = "schemaname";
For Tables:
SELECT CCSA.character_set_name FROM information_schema.`TABLES` T,
information_schema.`COLLATION_CHARACTER_SET_APPLICABILITY` CCSA
W...
Is there a way to access method arguments in Ruby?
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In Ruby 1.9.2 and later you can use the parameters method on a method to get the list of parameters for that method. This will return a list of pairs indicating the name of the parameter and whether it is required.
e.g.
If you do
def foo(x, y)
end
then
method(:f...
How do I get the logfile from an Android device?
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This commandline doesn't work for me, I get this output. logcat read: Invalid argument
– neoneye
Aug 24 '11 at 9:23
5
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How do you turn a Mongoose document into a plain object?
I have a document from a mongoose find that I want to extend before JSON encoding and sending out as a response. If I try adding properties to the doc it is ignored. The properties don't appear in Object.getOwnPropertyNames(doc) making a normal extend not possible. The strange thing is that JSON....
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
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Since dplyr 0.8 group_by gained the .drop argument that does just what you asked for:
df = data.frame(a=rep(1:3,4), b=rep(1:2,6))
df$b = factor(df$b, levels=1:3)
df %>%
group_by(b, .drop=FALSE) %>%
summarise(count_a=length(a))
#> # A tibble: 3 x 2
#> ...
Shell one liner to prepend to a file
...nswer which worked and received lots of upvotes. Then, as the question became more popular and more time passed, outraged people started reporting that it sorta worked but weird things could happen, or it just didn't work at all, so it was furiously downvoted for a time. Such fun.
The solution exp...
Semi-transparent color layer over background-image?
...fine a width and height to the .background class, if there are no other elements inside of it
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How to increase the max upload file size in ASP.NET?
... it per page.
<configuration>
<system.web>
<httpRuntime maxRequestLength="xxx" />
</system.web>
</configuration>
"xxx" is in KB. The default is 4096 (= 4 MB).
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