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How to echo with different colors in the Windows command line
...as Powershell you can do something like this (assuming BAT / CMD script):
CALL:ECHORED "Print me in red!"
:ECHORED
%Windir%\System32\WindowsPowerShell\v1.0\Powershell.exe write-host -foregroundcolor Red %1
goto:eof
Edit: (now simpler!)
It's an old answer but I figured I'd clarify & simpli...
Function overloading in Javascript - Best practices
...o create multiple methods of the same name with different implementations. Calls to an overloaded function will run a specific implementation of that function appropriate to the context of the call, allowing one function call to perform different tasks depending on context.
For example, doTask() an...
throws Exception in finally blocks
... The check for null is redundant. If the resource was null, then the calling method is broken should be fixed. Also, if the resource is null, that should probably be logged. Otherwise it results in a potential exception being silently ignored.
– Dave Jarvis
...
What exceptions should be thrown for invalid or unexpected parameters in .NET?
...oo, that do not focus so much on the argument itself, but rather judge the call as a whole:
InvalidOperationException – The argument might be OK, but not in the current state of the object. Credit goes to STW (previously Yoooder). Vote his answer up as well.
NotSupportedException – The argumen...
mysqli_fetch_assoc() expects parameter / Call to a member function bind_param() errors. How to get t
...QLi code produces an error like mysqli_fetch_assoc() expects parameter..., Call to a member function bind_param()... or similar. Or even without any error, but the query doesn't work all the same. It means that your query failed to execute.
Every time a query fails, MySQL has an error message that...
Better way to check if a Path is a File or a Directory?
...
@KeyMs92 Its bitwise math. Basically, attr is some binary value with one bit meaning "this is a directory". The bitwise and & operator will return a binary value where only the bits that are on (1) in both the operands are turned on. In this case doi...
Usage of __slots__?
...> w.foo = 'foo'
>>> Base.foo.__get__(w)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: foo
>>> Wrong.foo.__get__(w)
'foo'
The biggest caveat is for multiple inheritance - multiple "parent classes with nonempty slots" cannot ...
How do you test running time of VBA code?
...eCounter. Google it for more info. Try pushing the following into a class, call it CTimer say, then you can make an instance somewhere global and just call .StartCounter and .TimeElapsed
Option Explicit
Private Type LARGE_INTEGER
lowpart As Long
highpart As Long
End Type
Private Declare F...
Selecting data frame rows based on partial string match in a column
...emember that subsetting approaches for data.frames and data.tables are not identical):
library(data.table)
mtcars[rownames(mtcars) %like% "Merc", ]
iris[iris$Species %like% "osa", ]
If that is what you had, then perhaps you had just mixed up row and column positions for subsetting data.
If you...
How to quickly check if folder is empty (.NET)?
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edited Feb 23 at 4:58
Callum Watkins
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answered Jun 5 '09 at 8:33
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