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How do I use floating-point division in bash?
I am trying to divide two image widths in a Bash script, but bash gives me 0 as the result:
18 Answers
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How to initialize const member variable in a class?
When I am trying to initialize the const member variable t with 100. But it's giving me the following error:
11 Answers
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How to list the tables in a SQLite database file that was opened with ATTACH?
..._MASTER table for the "main" database. Consequently, if you used
ATTACH some_file.db AS my_db;
then you need to do
SELECT name FROM my_db.sqlite_master WHERE type='table';
Note that temporary tables don't show up with .tables either: you have to list sqlite_temp_master for that:
SELECT name F...
Tick symbol in HTML/XHTML
...3;])
✔ (0x2714 [HTML decimal: ✔])
Edit: There seems to be some confusion about the first symbol here, ☐ / 0x2610. This is an empty (unchecked) checkbox, so if you see a box, that's the way it's supposed to look. It's the counterpart to ☑ / 0x2611, which is the checked version.
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DbEntityValidationException - How can I easily tell what caused the error?
I have a project that uses Entity Framework. While calling SaveChanges on my DbContext , I get the following exception:
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How to upload a file in Django? [closed]
...app in Django 1.3. I could not find any up-to-date example/snippets. May someone post a minimal but complete (Model, View, Template) example code to do so?
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How to move a model between two Django apps (Django 1.7)
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I am removing the old answer as may result in data loss. As ozan mentioned, we can create 2 migrations one in each app. The comments below this post refer to my old answer.
First migration to remove model from 1st app.
$ python manage.py makemigrations old_app --empty
Edit migration fi...
How to prevent blank xmlns attributes in output from .NET's XmlDocument?
When generating XML from XmlDocument in .NET, a blank xmlns attribute appears the first time an element without an associated namespace is inserted; how can this be prevented?
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Get class list for element with jQuery
...hrough or assign to an array all of the classes that are assigned to an element?
17 Answers
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