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git + LaTeX workflow
...ized part of your work, and it is also easier for version control, as you know what changes have been made to each chapter, instead of having to figure it out from the logs of one big file.
Using Git efficiently:
Use branches!. There is perhaps no better advice I can give. I've found branches to ...
subtract two times in python
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If you know from your domain that two datetime.time objects a and b are from the same day, and that b > a, then the operation b - a has perfect meaning.
– swalog
Feb 5 '14 at 13:51
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Reducing the space between sections of the UITableView
... I think such behavior was added in iOS 5.0 or iOS 6.0, but yes - it's now much easier to setup distance between groups.
– Vlas Voloshin
Jun 5 '13 at 7:22
2
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What's quicker and better to determine if an array key exists in PHP?
...f it exists and is not NULL; otherwise it returns its second operand.
So now you can assign a default value in case the value is null or if the key does not exist :
$var = $array[$key] ?? 'default value'
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java: ArrayList - how can i check if an index exists?
...uff. but the next time at that index, my index will still be index = 0 and now I am re-initializing that element in the list when I was supposed to be doing stuff. The 1st thought is to && a second condition like list.get(index) == null but that not working is why there are questions like th...
What is the best way to implement nested dictionaries?
...ber in data.items():
vividict[state][county][occupation] = number
And now:
>>> import pprint
>>> pprint.pprint(vividict, width=40)
{'new jersey': {'mercer county': {'plumbers': 3,
'programmers': 81},
'middlesex county': {'progr...
IEnumerable and Recursion using yield return
... This is slick. I've always been bothered by the additional foreach loop. Now I can do this with pure functional programming!
– jsuddsjr
Jun 13 '14 at 4:13
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Entity Framework rollback and remove bad migration
...se, but I realised that the last migration was bad and I don't want it. I know that I can rollback to a previous migration, but when I add a new (fixed) migration and run Update-Database, even the bad migration is applied.
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How do I capture response of form.submit
...Say if you wanted to post to a URL for a download through a button click? Now you can't use Ajax for your request. Want to then clean up or update the interface when the download is complete? Now is a time to want a callback from a POST that isn't Ajax. (Necropost, I know.)
–...
How to check if activity is in foreground or in visible background?
...liably. You might have the following situation: Resume A Resume B Pause A. Now activityVisible is false whereas the application is visible. Perhaps you use a visibility counter: visibleCounter ++ in onResume and visibleCounter -- in onPause.
– Joris Weimar
Mar ...