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Check existence of input argument in a Bash shell script
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For a noob, especially someone who comes from a non-scripting background, it is also important to mention some peculiarities about these things. You could have also mentioned that we need a space after the opening and the closing brace. Otherwise things do not work....
Group by & count function in sqlalchemy
...counting says that for group_by queries it is better to use func.count():
from sqlalchemy import func
session.query(Table.column, func.count(Table.column)).group_by(Table.column).all()
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git ignore exception
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Use:
*.dll #Exclude all dlls
!foo.dll #Except for foo.dll
From gitignore:
An optional prefix ! which negates the pattern; any matching file excluded by a previous pattern will become included again. If a negated pattern matches, this will override lower precedence patterns sourc...
WPF Data Binding and Validation Rules Best Practices
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From MS's Patterns & Practices documentation:
Data Validation and Error Reporting
Your view model or model will often be
required to perform data validation
and to signal any data validation
errors to the v...
Unlink of file failed
...orer.exe was my problem - I don't have TortoiseGit. I killed explorer.exe from Task Manager and spawned a new one using CTRL-ALT-DELETE => Task Manager => File => Run New Task => "explorer.exe" (without the quotes)
– joehanna
Jul 27 '15 at 1:20
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What 'sensitive information' could be disclosed when setting JsonRequestBehavior to AllowGet
I've been getting the same old error every time I test a new URL from my browser's address bar when I'm returning Json (using the built-in MVC JsonResult helper ):
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What is the benefit of using Fragments in Android, rather than Views?
...rday I did this and successfully implemented Fragments to visualize data from a custom class.
6 Answers
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git add all except ignoring files in .gitignore file
...ns this directory and all other directories recursively, so if you do this from the bottom level of your repo, you should add all of the files.
My usual git flow is to create the .gitignore file and add the project files to the repo. I'll test the .gitignore file by typing git status after importin...
Installing specific package versions with pip
...ake another question please and post the error message that you're getting from pip.
– Mahmoud Abdelkader
Mar 8 '11 at 0:10
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Setting default value for TypeScript object passed as argument
...ob' });
The trick is to first put in brackets what keys you want to pick from the argument object, with key=value for any defaults. Follow that with the : and a type declaration.
This is a little different than what you were trying to do, because instead of having an intact params object, you hav...