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How to set a Fragment tag by code?
...Fragment class. The only way to set a Fragment tag that I have found is by doing a FragmentTransaction and passing a tag name as parameter.
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AI2 Media Notification
...ta from an UrsMediaHelper component added. The directories returned by GetAppDataDir & GetDownloadDir close with "/". 1.2 (2021-09-12) If the extension is used in several apps, tapping an action button triggers the associated event in all apps at the same time. This is...
What is the use of “ref” for reference-type variables in C#?
...C#. It details clearly the exact behaviour and usage of passing parameters by value, by reference (ref), and by output (out).
Here's an important quote from that page in relation to ref parameters:
Reference parameters don't pass the
values of the variables used in the
function member invoc...
Descending order by date filter in AngularJs
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According to documentation you can use the reverse argument.
filter:orderBy(array, expression[, reverse]);
Change your filter to:
orderBy: 'created_at':true
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How to compare 2 files fast using .NET?
...l approaches recommend reading the binary via FileStream and comparing it byte-by-byte.
18 Answers
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'setInterval' vs 'setTimeout' [duplicate]
...he interval is reached. It should not be nested into its callback function by the script author to make it loop, since it loops by default. It will keep firing at the interval unless you call clearInterval().
if you want to loop code for animations or clocks
Then use setInterval.
function doStuff(...
How should I read a file line-by-line in Python?
...e.txt') as fp:
for line in fp:
print line
We are all spoiled by CPython's relatively deterministic reference-counting scheme for garbage collection. Other, hypothetical implementations of Python will not necessarily close the file "quickly enough" without the with block if they use so...
Why can't you modify the data returned by a Mongoose Query (ex: findById)
When I try to change any part of the data returned by a Mongoose Query it has no effect.
2 Answers
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smart pointers (boost) explained
...object after it goes out of scope.
Share of ownership can be implemented by having a copy constructor. This naturally copies a smart pointer and both the copy and the original will reference the same object. Transfer of ownership cannot really be implemented in C++ currently, because there are no ...
How to get last N records with activerecord?
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Updated Answer (2020)
You can get last N records simply by using last method:
Record.last(N)
Example:
User.last(5)
Returns 5 users in descending order by their id.
Deprecated (Old Answer)
An active record query like this I think would get you what you want ('Something' is the mode...