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How to make an enum conform to a protocol in Swift?
Swift documentation says that classes , structs , and enums can all conform to protocols, and I can get to a point where they all conform. But I can't get the enum to behave quite like the class and struct examples:
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How do we count rows using older versions of Hibernate (~2009)?
... answered Sep 3 '09 at 10:34
SalandurSalandur
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Force update of an Android app when a new version is available
... app starts, you could call this API that pass in the current app version, and check the response of the versioning API call.
If forceUpgrade is true, show a popup dialog with options to either let user quit the app, or go to Google Play Store to upgrade the app.
Else if recommendUpgrade is true...
What is monkey patching?
I am trying to understand, what is monkey patching or a monkey patch?
8 Answers
8
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What is this: [Ljava.lang.Object;?
...f the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
Note: you can no...
twitter-bootstrap vs jquery-mobile [closed]
...will only show a single div with data-role='page' at a time), AJAX preload and history API, and lots of touch friendly components/widgets. Whereas bootstrap is foremost a CSS library mostly for desktop but works on mobile as well especially since 2.0 comes with media queries built in. Bootstrap wi...
How to support placeholder attribute in IE8 and 9
...t. The solution you have suggested in this answer seems a lot more robust and worked a treat.
– Jonny White
Sep 11 '13 at 19:03
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Purpose of Django setting ‘SECRET_KEY’
...ly is the point of the SECRET_KEY in django? I did a few google searches and checked out the docs ( https://docs.djangoproject.com/en/dev/ref/settings/#secret-key ), but I was looking for a more in-depth explanation of this, and why it is required.
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Is the order guaranteed for the return of keys and values from a LinkedHashMap object?
...der (insertion order). Does the Set returned by LinkedHashMap.keySet() and the Collection returned by LinkedHashMap.values() also maintain this order?
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how to exclude null values in array_agg like in string_agg using postgres?
... non_canonical_users
FROM groups g
GROUP BY g.id
) s
Or, simpler and may be cheaper, using array_to_string which eliminates nulls:
SELECT
g.id,
array_to_string(
array_agg(CASE WHEN g.canonical = 'Y' THEN g.users ELSE NULL END)
, ','
) canonical_users,
array...