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How to get Activity's content view?
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this.getWindow().getDecorView().findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content)
or
this.findViewById(android.R.id.content).getRootView()
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Sequence contains no matching element
I have an asp.net application in which I am using linq for data manipulation. While running, I get the exception "Sequence contains no matching element".
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In Angular, I need to search objects in an array
In Angular, I have in scope a object which returns lots of objects. Each has an ID (this is stored in a flat file so no DB, and I seem to not be able to user ng-resource )
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...n you limit the number of rows to be returned by a SQL query, usually used in paging, there are two methods to determine the total number of records:
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Change the name of the :id parameter in Routing resources for Rails
...o change the dynamic params slot and found this post that does the exact thing.
The post is https://thoughtbot.com/blog/rails-patch-change-the-name-of-the-id-parameter-in
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Insert into a MySQL table or update if exists
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Use INSERT ... ON DUPLICATE KEY UPDATE
QUERY:
INSERT INTO table (id, name, age) VALUES(1, "A", 19) ON DUPLICATE KEY UPDATE
name="A", age=19
share
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How to count occurrences of a column value efficiently in SQL?
...ge)
FROM Students
GROUP by age
If you need the id as well you could include the above as a sub query like so:
SELECT S.id, S.age, C.cnt
FROM Students S
INNER JOIN (SELECT age, count(age) as cnt
FROM Students
GROUP BY age) C ON S.age = C.age...
What does “for” attribute do in HTML tag?
I wonder what is the difference between the following two code snippets:
6 Answers
6
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How to access the GET parameters after “?” in Express?
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So, after checking out the express reference, I found that req.query.color would return me the value I'm looking for.
req.params refers to items with a ':' in the URL and req.query refers to items associated with the '?'
Example:
GET /s...
Cast an instance of a class to a @protocol in Objective-C
...ct (a UIViewController) which may or may not conform to a protocol I've defined.
2 Answers
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