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How to create an empty file at the command line in Windows?
... right of the equal sign" is empty... the result is an empty file.
The difference with cd. > filename (which is mentioned in Patrick Cuff's answer and does also produce a 0-byte-length file) is that this "bit of redirection" (the <nul... trick) can be used to echo lines without any CR:
<...
Is it possible to serialize and deserialize a class in C++?
...ck of the order in which objects are written and read. Is that correct? So if there is a change in the order in which two fields are written between versions of a program then we have an incompatibility. Is this right?
– Agnel Kurian
Jul 2 '13 at 8:19
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How do I get a list of all the duplicate items using pandas in python?
... groupby on the ID.
>>> pd.concat(g for _, g in df.groupby("ID") if len(g) > 1)
ID ENROLLMENT_DATE TRAINER_MANAGING TRAINER_OPERATOR FIRST_VISIT_DATE
6 11795 3-Jul-12 0649597-White River VT 0649597-White River VT 30-Mar-12
24 11795 27-Feb-12...
Usage of EnsureSuccessStatusCode and handling of HttpRequestException it throws
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Polly now handles return results as well as exceptions, precisely to aid with this kind of scenario. You can configure Polly to protect HttpRequest calls, and configure the policy both to handle certain exceptions, and certain Htt...
How can I write output from a unit test?
... I have found (with VS2013) that this only prints something if the test is run in debug mode.
– fusi
Sep 24 '15 at 11:15
3
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Run command on the Ansible host
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Yes, you can run commands on the Ansible host. You can specify that all tasks in a play run on the Ansible host, or you can mark individual tasks to run on the Ansible host.
If you want to run an entire play on the Ansible host, then specify hosts: 127.0.0.1 and connection:local in ...
Python strptime() and timezones?
... noting this has been updated as of version 3.2 and the same documentation now also states the following:
When the %z directive is provided to the strptime() method, an aware datetime object will be produced. The tzinfo of the result will be set to a timezone instance.
Note that this doesn't w...
What's the Best Way to Shuffle an NSMutableArray?
If you have an NSMutableArray , how do you shuffle the elements randomly?
12 Answers
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Best way to initialize (empty) array in PHP
...S3 for example), it has been noted that initializing a new array is faster if done like this var foo = [] rather than var foo = new Array() for reasons of object creation and instantiation. I wonder whether there are any equivalences in PHP?
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C# Regex for Guid
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123}
123)
Regex:
^({)?(\()?\d+(?(1)})(?(2)\))$
The solutions is simplified to match only numbers to show in a more clear way what is required if needed.
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