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Is it possible to set the equivalent of a src attribute of an img tag in CSS?
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@EricG, different applications have different requirements. If it doesn't suit your requirements, don't use it. If it does, use it.
– Pacerier
Feb 22 '13 at 12:17
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Secure random token in Node.js
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If you're looking for the above as a bash one-liner, you can do node -e "require('crypto').randomBytes(48, function(ex, buf) { console.log(buf.toString('hex')) });"
– Dmitry Minkovsky
Fe...
How to detect if CMD is running as Administrator/has elevated privileges?
...solution here: http://www.robvanderwoude.com/clevertricks.php
AT > NUL
IF %ERRORLEVEL% EQU 0 (
ECHO you are Administrator
) ELSE (
ECHO you are NOT Administrator. Exiting...
PING 127.0.0.1 > NUL 2>&1
EXIT /B 1
)
Assuming that doesn't work and since we're talking Win7 ...
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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sed or awk: delete n lines following a pattern
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What's happening is similar but slightly different in each case. In the first recipe, /pattern/,+5 defines a range, which starts with a line containing "pattern" (/pattern/) and ends 5 lines later (+5). The last character d is a command to run on each line in that ...
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...
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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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...
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...