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Best practices for in-app database migration for Sqlite
...ay to update existing tables in-place. See the documentation here: http://www.sqlite.org/lang_altertable.html. For deleting columns or other changes that aren't supported by the "ALTER TABLE" syntax, I create a new table, migrate date into it, drop the old table, and rename the new table to the or...
How do I mock an open used in a with statement (using the Mock framework in Python)?
...rotocol methods (magic methods), particularly using the MagicMock:
http://www.voidspace.org.uk/python/mock/magicmock.html
An example of mocking open as a context manager (from the examples page in the mock documentation):
>>> open_name = '%s.open' % __name__
>>> with patch(open_...
Bootstrap 3 and 4 .container-fluid with grid adding unwanted padding
...Bootstrap. But it works for now (Bootstrap 3.3.5 & 4.0-alpha).
http://www.bootply.com/ioWBaljBAd
Sample HTML:
<div class="container">
<div class="row full-width-row">
<div>
<div class="col-sm-4 col-md-3">…</div>
<div class="col-sm-4 col-md-...
Optional Parameters with C++ Macros
...h the ingenious method to detect empty macro arguments by Jens Gustedt at
https://gustedt.wordpress.com/2010/06/08/detect-empty-macro-arguments/
finally I come out with something that incorporates all the tricks, so that the solution
Uses only standard C99 macros to achieve function overloading,...
Loading and parsing a JSON file with multiple JSON objects
...his question) elegantly handles files with one json document per line. see https://jsonlines.readthedocs.io/
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What is unit testing and how do you do it? [duplicate]
...e on the NUnit site is a good introduction to the what and the how
http://www.nunit.org/index.php?p=quickStart&r=2.5
Is everything testable? Generally if it calculates something then yes. UI code is a whole other problem to deal with though, as simulating users clicking on buttons is tricky.
...
How to change an application icon programmatically in Android?
...omplished for a "new messages" type application similar to iPhone:
http://www.cnet.com/8301-19736_1-10278814-251.html
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Advantages and disadvantages of GUID / UUID database keys
...ation. But those are easilly solvable (comb guids by jimmy nillson: http://www.informit.com/articles/article.aspx?p=25862 )
Edit merged my two answers to this question
@Matt Sheppard I think he means that you can duplicate rows with different GUIDs as primary keys. This is an issue with any kind o...
How do I put two increment statements in a C++ 'for' loop?
...
Try not to do it!
From http://www.research.att.com/~bs/JSF-AV-rules.pdf:
AV Rule 199
The increment expression in a for loop will perform no action other than to change a single
loop parameter to the next value for the loop.
Rationale: Reada...
Fast stable sorting algorithm implementation in javascript
... you are looking for something stable, the merge sort should do.
http://www.stoimen.com/blog/2010/07/02/friday-algorithms-javascript-merge-sort/
The code can be found at the above website:
function mergeSort(arr)
{
if (arr.length < 2)
return arr;
var middle = parseInt(arr.l...