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How do I negate a condition in PowerShell?
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You almost had it with Not. It should be:
if (-Not (Test-Path C:\Code)) {
write "it doesn't exist!"
}
You can also use !: if (!(Test-Path C:\Code)){}
Just for fun, you could also use bitwise exclusive or, though it's not the most readable/understandable metho...
How can I get every nth item from a List?
... @mquander: Note that this will actually give you the nth - 1 element. If you want the actual nth elements (skipping the first) then you will have to add 1 to i.
– casperOne
Mar 25 '09 at 17:37
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Algorithms based on number base systems? [closed]
...s (systems that have more than one representation of a number) are useful.
If you arrange the first digit to be non-zero or use a zeroless representation, retrieving the head of the data structure can be efficient.
Avoid cascading borrows (from taking the tail of the list) and carries (from consing ...
How to determine device screen size category (small, normal, large, xlarge) using code?
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You can use the Configuration.screenLayout bitmask.
Example:
if ((getResources().getConfiguration().screenLayout &
Configuration.SCREENLAYOUT_SIZE_MASK) ==
Configuration.SCREENLAYOUT_SIZE_LARGE) {
// on a large screen device ...
}
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How to compare 2 files fast using .NET?
...5 checksum with C#.
However, a checksum may be faster and make more sense if you can pre-compute the checksum of the "test" or "base" case. If you have an existing file, and you're checking to see if a new file is the same as the existing one, pre-computing the checksum on your "existing" file wou...
How to delete a record in Django models?
...te that the first one will not call the .delete() method of the object, so if you have 'cleanup' code in that method it will not be called. Generally not an issue, but worth keeping in mind.
– Matthew Schinckel
Sep 28 '10 at 0:08
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How to find all links / pages on a website
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how do I do that myself? and what if there is no robots.txt in a web site?
– Alan Coromano
Jul 30 '13 at 17:15
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Generate colors between red and green for a power meter?
... N steps, each step you increment X by (Y-X)/N - though it will look nicer if you move in the HSV space rather than RGB
– Paul Dixon
Sep 19 '14 at 15:44
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Reading an Excel file in PHP [closed]
... can handle .xls-files, but not .xlsx files. PHPExcel can handle a lot of different formats (including .xls and .xlsx) (github.com/PHPOffice/Phpexcel) and is in stable version. PHPSpreadsheet is a further development of PHPExcel but is not stable (as I'm writing this): github.com/PHPOffice/PhpSpread...
Short form for Java if statement
I know there is a way for writing a Java if statement in short form.
15 Answers
15
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