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Why do == comparisons with Integer.valueOf(String) give different results for 127 and 128?
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191
There's a striking difference here.
valueOf is returning an Integer object, which may have it...
Javascript - Track mouse position
...ntially, when a page loads - this tracker should start and for (say) every 100 ms, I should get the new value of posX and posY and print it out in the form.
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JavaScript: What are .extend and .prototype used for?
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137
Javascript's inheritance is prototype based, so you extend the prototypes of objects such as D...
Why are nested weights bad for performance? Alternatives?
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141
Nested weights are bad for performance because:
Layout weights require a widget to be meas...
Firebug says “No Javascript on this page”, even though JavaScript does exist on the page
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Microsoft Roslyn vs. CodeDom
...nd (somewhat) langage agnostic way to generate code that was added in .NET 1.0 to support designers (a la WinForms). Because CodeDom was an attempt at providing a unified model that can generate code in C#, VB, and other languages, it lacks high fidelity with any of the languages that it supports (t...
Why do I need Transaction in Hibernate for read-only operations?
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131
You might actually have reasons to mark transactions as read-only.
Transactions for reading ...
SQLAlchemy: What's the difference between flush() and commit()?
... to the database.
flush() is always called as part of a call to commit() (1).
When you use a Session object to query the database, the query will return results both from the database and from the flushed parts of the uncommitted transaction it holds. By default, Session objects autoflush their op...
What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?
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edited May 23 '17 at 12:26
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answered Dec 31 '13 at 12:00
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When to add what indexes in a table in Rails
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176
Should I add "index" to all the foreign keys like "xxx_id"?
It would be better, because i...