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MySQL Query to select data from last week?
Hi I have a table with a date field and some other information.
I want to select all entries from the past week, (week start from Sunday).
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How to check if IEnumerable is null or empty?
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Count() only iterates the enumeration if it can't be cast to an ICollection. In other words, when you call this method, if there's already a Count property on the object, it will just return that and the performance should be identical. Check out the implementation here: refere...
How to do a JUnit assert on a message in a logger
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@s.d If you cast the Logger to org.apache.logging.log4j.core.Logger (the implementation class for the interface) you'll get access to setAppender()/removeAppender() again.
– David Moles
Dec 10 '19 a...
jQuery get value of selected radio button
The problem statement is simple. I need to see if user has selected a radio button from a radio group. Every radio button in the group share same id.
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What are the differences between Chosen and Select2?
Chosen and Select2 are the two more popular libraries for extending selectboxes.
11 Answers
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Rails: select unique values from a column
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Model.select(:rating)
Result of this is a collection of Model objects. Not plain ratings. And from uniq's point of view, they are completely different. You can use this:
Model.select(:rating).map(&:rating).uniq
or this (mo...
Selecting all text in HTML text input when clicked
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You can use this javascript snippet:
<input onClick="this.select();" value="Sample Text" />
But apparently it doesn't work on mobile Safari. In those cases you can use:
<input onClick="this.setSelectionRange(0, this.value.length)" value="Sample Text" />
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Service Reference Error: Failed to generate code for the service reference
...types option is there for a reason and in some cases it avoids unnecessary casting in the code consuming the service.
For example, if the service itself is built using WCF and some methods parameters inside it are of type System.Guid, they will be translated to strings in the generated client if th...
How to convert SecureString to System.String?
...rtainly use the unsafe keyword and a char*, just call bstr.ToPointer() and cast.
– Ben Voigt
Jun 21 '16 at 16:23
@BenV...
Grouped LIMIT in PostgreSQL: show the first N rows for each group?
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New solution (PostgreSQL 8.4)
SELECT
*
FROM (
SELECT
ROW_NUMBER() OVER (PARTITION BY section_id ORDER BY name) AS r,
t.*
FROM
xxx t) x
WHERE
x.r <= 2;
sha...