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What are bitwise shift (bit-shift) operators and how do they work?
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The bit shifting operators do exactly what their name implies. They shift bits. Here's a brief (or not-so-brief) introduction to the different shift operators.
The Operators
>> is the arithmetic (or signed) right shift operator.
>>> is the logi...
Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
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Database design for a survey [closed]
...create a survey where answers are stored in a database. I'm just wondering what would be the best way to implement this in the database, specifically the tables required. The survey contains different types of questions. For example: text fields for comments, multiple choice questions, and possibly ...
Margin on child element moves parent element
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i wanna know why does this happen what good this does to anyone. What situation this 'feature' was meant to be.
– Muhammad Umer
Mar 14 '13 at 14:47
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Invoking a jQuery function after .each() has completed
...n the question was spot on. I was asking about .each() and thought that is what I wanted but as you and tvanfosson and now patrick have pointed out - it was the final fadeOut that I was actually interested in. I think we all agree that your example (counting instead of indexes) is probably the safes...
How do the likely/unlikely macros in the Linux kernel work and what is their benefit?
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@RossRogers: What really happens is the compiler arranges the branches so the common case is the not-taken one. This is faster even when branch prediction does work. Taken branches are problematic for instruction-fetch and decode even w...
SELECT INTO Variable in MySQL DECLARE causes syntax error?
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I ran into this same issue, but I think I know what's causing the confusion. If you use MySql Query Analyzer, you can do this just fine:
SELECT myvalue
INTO @myvar
FROM mytable
WHERE anothervalue = 1;
However, if you put that same query in MySql Workbench, it will t...
PHP cURL HTTP CODE return 0
... content, but the $httpcode always return 0, plus the curl_error is null . what could possible went wrong. I only include returntransfer, header (false), followlocation in the setting only.
– Ardeus
May 2 '12 at 12:08
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How are people unit testing with Entity Framework 6, should you bother?
...s answer stated it's often pointless to spend vast amounts of time testing what you don't own.
However, you do own the database underneath! This is where this approach in my opinion breaks down, you don't need to test that EF/NH are doing their jobs correctly. You need to test that your mappings/im...
WWW or not WWW, what to choose as primary site name? [closed]
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What problems does it cause graphic designers?
– StuperUser
Jul 10 '09 at 13:07
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