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Intercept page exit event
...t in production. console.log is not crossbrowser; each postRequest suffers from the delay of the previous ones (which also means the page will hang there for the duration of your loop * scheduled requests); the requests aren't started in parallel; you aren't guaranteed to really send your requests. ...
Why use JUnit for testing?
..., checking the path of a robot, filling a bottle of soda, aggregating data from a hundred web services, checking the audit trail of a financial transaction... you get the idea. "Output" doesn't mean a few lines of text, "output" means aggregate system behavior.
Lastly, unit and behavior tests de...
Make sure only a single instance of a program is running
...tform and runs on Python 2.4-3.2. I tested it on Windows, OS X and Linux.
from tendo import singleton
me = singleton.SingleInstance() # will sys.exit(-1) if other instance is running
The latest code version is available singleton.py. Please file bugs here.
You can install tend using one of the f...
Difference between filter and filter_by in SQLAlchemy
... db.users.name=='Ryan' evaluate once to a constant and then be meaningless from then on? It seems like one would need to use a lambda for this to work.
– Hamish Grubijan
Feb 27 '13 at 23:11
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Lambda function in list comprehensions
...ion.
I don't think the purpose of the OP was to generate a list of squares from 0 to 9. If that was the case, we could give even more solutions:
squares = []
for x in range(10): squares.append(x*x)
this is the good ol' way of imperative syntax.
But it's not the point. The point is W(hy)TF is this...
Best way to implement Enums with Core Data
...! so much easier than creating tables in the db, unless your db is filled from a web service then its probably best to use a db table!
– TheLearner
Oct 4 '11 at 8:33
6
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Why should I use tags vs. release/beta branches for versioning?
...en making a release, you generally want to mark the "snapshot" of the code from which that release was built, and you want it to stay marked that way even as you continue to evolve the code, so you'd use a tag.
If you tried using a branch for that, it could inadvertently move to a different commit,...
When to use AtomicReference in Java?
...rst need to obtain a lock on that object. This prevents some other thread from coming in during the meantime and changing the value in the middle of the new string concatenation. Then when your thread resumes, you clobber the work of the other thread. But honestly that code will work, it looks cle...
Drawing text to with @font-face does not work at the first time
...call the fillText method. However, the browser has not yet loaded the font from the network, which is a background task. So it has to fall back to the font it does have available.
If you want to make sure the font is available, have some other element on the page preload it, eg.:
<div style="fo...
Can I incorporate both SignalR and a RESTful API?
...really sped up the page considerably and reduced a lot of the server calls from the page.
3 Answers
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