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Get time difference between two dates in seconds
...act them and divide by 1000 (since it's originally in milliseconds). As an extra, when you're calling the getDate() method, you're in fact getting the day of the month as an integer between 1 and 31 (not zero based) as opposed to the epoch time you'd get from calling the getTime() method, representi...
Change UICollectionViewCell size on different device orientations
...ls with animation (you can just pass nil to both block params if you've no extra adjustments to perform).
2) Instead of hardcoding the item sizes in -collectionView:layout:sizeForItemAtIndexPath, just divide the height or width of the collectionView's bounds by the number of cells you want to fit o...
When should one use a 'www' subdomain?
...aterials, would they immediately recognise it as a web address without the extra ‘www’ or ‘http://’? In Japan, for example, you would get funny looks for choosing the non-www version.
Whichever you choose, though, be consistent. Make both www and non-www versions accessible, but make one of...
Invalid postback or callback argument. Event validation is enabled using '
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The problem is that ASP.NET does not get to know about this extra or removed listitem.
You got an number of options (listed below):
Disable eventvalidation (bad idea, because you lose a little of security that come with very little cost).
Use ASP.NET Ajax UpdatePanel. (Put the listb...
How to set default value for form field in Symfony2?
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Not really ideal given you'll have to maintain this function if you add extra fields, but it does mean you're separating the data setters / default and that which is generated from the db. Similarly you can have multiple getFactories should you want different defaulted data.
Extended / Reflectio...
Why is my xlabel cut off in my matplotlib plot?
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I find it pretty weird that one would need to make an extra call to make room for an essential part of a plot. What's the reasoning behind this?
– a different ben
Apr 9 '12 at 8:09
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Should I use 'border: none' or 'border: 0'?
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Am I the only one back here that cheers at an extra nanosecond?
– Leathan
Aug 8 '17 at 15:12
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Method to Add new or update existing item in Dictionary
...work fine in multi-threaded context. It however is not thread-safe without extra synchronization.
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Unique BooleanField value in Django?
..., self).save(*args, **kwargs)
@Ellis Percival: Hits the database only one extra time and accepts the current entry as the chosen one. Clean and elegant.
from django.db import transaction
class Character(models.Model):
name = models.CharField(max_length=255)
is_the_chosen_one = models.Bool...
Why do x86-64 systems have only a 48 bit virtual address space?
... is required. Why bother with the cost and hardware complexity of all the extra pins that you won't use?
The Motorola 68000 was like this; 32 bit internally, but with a 23 bit address bus (and a 16 bit data bus). The CPU could access 16 megabytes of RAM, and to load the native data type (32 bits)...