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Is there a better way to write this null check, and a non-empty check, in groovy?
I need to perform a null/empty check on some code, before performing some logic.
I have item below, because I feel !members?.empty is not correct.
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How to return an empty ActiveRecord relation?
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There is a now a "correct" mechanism in Rails 4:
>> Model.none
=> #<ActiveRecord::Relation []>
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JavaScript Regular Expression Email Validation [duplicate]
...ses on the client-side. Your regular expression is way too simple to pass for a solid implementation anyway.
See the real thing here: http://www.ex-parrot.com/~pdw/Mail-RFC822-Address.html
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How to check for changes on remote (origin) Git repository?
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You could git fetch origin to update the remote branch in your repository to point to the latest version. For a diff against the remote:
git diff origin/master
Yes, you can use caret notation as well.
If you want to accept the remote changes...
How to convert current date into string in java?
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String date = new SimpleDateFormat("dd-MM-yyyy").format(new Date());
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How can I verify if one list is a subset of another?
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The performant function Python provides for this is set.issubset. It does have a few restrictions that make it unclear if it's the answer to your question, however.
A list may contain items multiple times and has a specific order. A...
Convert a python UTC datetime to a local datetime using only python standard library?
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In Python 3.3+:
from datetime import datetime, timezone
def utc_to_local(utc_dt):
return utc_dt.replace(tzinfo=timezone.utc).astimezone(tz=None)
In Python 2/3:
import calendar
from datetime import datetime, timedelta
def utc_to_local(utc_dt):
# ...
Can I automatically increment the file build version when using Visual Studio?
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In visual Studio 2008, the following works.
Find the AssemblyInfo.cs file and find these 2 lines:
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]
You could try changing this to:
[assembly: AssemblyVersion("1.0.*")]
[assembly...
Git interoperability with a Mercurial Repository
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Update from June 2012. Currently there seem to be the following methods for Git/Hg interoperability when the developer wants to work from the git side:
Install Mercurial and the hg-git extension. You can do the latter using your package manager, or with easy_install hg-git. Then make sure the fo...
Homebrew: List only installed top level formulas
I'm looking for a way to show only the formulas I installed without the installed dependencies.
I want to have a list of all the programs I actually installed, without all noise of the dependencies.
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