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Are there pronounceable names for common Haskell operators? [closed]
... "to" |
| $ | "apply" |
| _ | "whatever" |
| !! | "index" |
| ++ | "concat" |
| [] | "empty list" ...
How to generate a create table script for an existing table in phpmyadmin?
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Is there a way to specify which database, for example if you have multiple databases that contain the same tablename? Or is that not possible?
– Davos
Feb 20 '18 at 6:03
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Integrate ZXing in Android Studio
...ent over a day trying to import Zxing from another project and was getting nowhere. Then I found this link and BAM it's done. Just follow the code example as above from this link: github.com/zxing/zxing/wiki/Scanning-Via-Intent.
– Jack BeNimble
Apr 8 '15 at 3:3...
Drop data frame columns by name
...hose still not acquainted with the drop argument of the indexing function, if you want to keep one column as a data frame, you do:
keeps <- "y"
DF[ , keeps, drop = FALSE]
drop=TRUE (or not mentioning it) will drop unnecessary dimensions, and hence return a vector with the values of column y.
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C++ catching all exceptions
...ered bad design. You can use c++11's new current_exception mechanism, but if you don't have the ability to use c++11 (legacy code systems requiring a rewrite), then you have no named exception pointer to use to get a message or name. You may want to add separate catch clauses for the various exce...
Why use static_cast(x) instead of (int)x?
...n the other hand is always dangerous. You tell the compiler: "trust me: I know this doesn't look like a foo (this looks as if it isn't mutable), but it is".
The first problem is that it's almost impossible to tell which one will occur in a C-style cast without looking at large and disperse pieces ...
VB.NET equivalent to C# var keyword [duplicate]
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Option Infer must be on in order for this to function properly. If so, then omitting the type in VB.NET (Visual Basic 9) will implicitly type the variable.
This is not the same as "Option Strict Off" in previous versions of VB.NET, as the variable is strongly-typed; it's just done so imp...
How do I get the application exit code from a Windows command line?
...nning a program and want to see what its return code is (since it returns different codes based on different errors).
7 Ans...
Automate ssh-keygen -t rsa so it does not ask for a passphrase
...that the space separating the option and the empty passphrase -N '' is significant. When I added the space it succeeded!
– GH05T
Nov 6 '18 at 7:11
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How to find the type of an object in Go?
..... etc
default:
return "unknown"
}
}
Every method has a different best use case:
string formatting - short and low footprint (not necessary to import reflect package)
reflect package - when need more details about the type we have access to the full reflection capabilities
type a...