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How can I force Powershell to return an array when a call only returns one object?
...
Define the variable as an array in one of two ways...
Wrap your piped commands in parentheses with an @ at the beginning:
$serverIps = @(gwmi Win32_NetworkAdapterConfiguration
| Where { $_.IPAddress }
| Select -Expand IPAddress
| Where { $_ -l...
Relational table naming convention [closed]
... Beware of the heathens. Plural in the table names are a sure sign of someone who has not read any of the standard materials and has no knowledge of database theory.
Some of the wonderful things about Standards are:
they are all integrated with each other
they work together
they were written ...
When to use references vs. pointers
...der to read when there's no indication of what's happening, why should add_one(a) not return the result, rather than set it by reference?
– connec
Aug 14 '11 at 18:21
46
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Are braces necessary in one-line statements in JavaScript?
I once heard that leaving the curly braces in one-line statements could be harmful in JavaScript. I don't remember the reasoning anymore and a Google search did not help much.
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How can I make one python file run another? [duplicate]
How can I make one python file to run another?
8 Answers
8
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Bomb dropping algorithm
...he inner layer simpler by >X bombs. So, if we call
the permiter layer one, if we place an extra X bombs somewhere in layer 2 (just
inside layer 1), can we reduce the effort of later bombing away layer 2 by more than
X? In other words, we have to prove we can be greedy in reducing the outer
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Why doesn't the height of a container element increase if it contains floated elements?
... <!-- Now in order to prevent the next div from floating beside the top ones,
we use `clear: both;`. This is like a wall, so now none of the div's
will be floated after this point. The container height will now also include the
height of these floated divs -->
<div...
How to resolve merge conflicts in Git?
...er comment:
The command
doesn't necessarily open a GUI unless you install one. Running git mergetool for me resulted in vimdiff being used. You can install
one of the following tools to use it instead: meld, opendiff,
kdiff3, tkdiff, xxdiff, tortoisemerge, gvimdiff, diffuse,
ecmerge, p4merge, araxi...
Implementing two interfaces in a class with same method. Which interface method is overridden?
...define a method that has identical signature, then in effect there is only one method, and they are not distinguishable. If, say, the two methods have conflicting return types, then it will be a compilation error. This is the general rule of inheritance, method overriding, hiding, and declarations, ...
How to skip over an element in .map()?
...d seem weird if a couple of cities were completely missing, a mapping from one list to another only really makes sense when there's a 1 to 1 set of result values.
I'm not saying that it doesn't make sense to create a new list from an old list with some values excluded. I'm just trying to make clear ...