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what exactly is device pixel ratio?
this is mentioned every article about mobile web, but nowhere I can found an explanation of what exactly does this attribute measure.
Can anyone please elaborate what does queries like this check?
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Is there a generator version of `string.split()` in Python?
string.split() returns a list instance. Is there a version that returns a generator instead? Are there any reasons against having a generator version?
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.rar, .zip files MIME Type
I'm developing a simple php upload script, and users can upload only ZIP and RAR files.
6 Answers
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How to “warm-up” Entity Framework? When does it get “cold”?
No, the answer to my second question is not the winter.
5 Answers
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Ruby: How to turn a hash into HTTP parameters?
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SQLAlchemy: What's the difference between flush() and commit()?
What the difference is between flush() and commit() in SQLAlchemy?
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解决：CTreeCtrl控件SetCheck无效的问题 - C/C++ - 清泛网 - 专注C/C++及内核技术
解决：CTreeCtrl控件SetCheck无效的问题解决方法：SetCheck之前或OnInitDialog中添加如下两句代码m_tree.ModifyStyle( TVS_CHECKBOXES, 0 );m_tree.ModifyStyle( 0, TVS_CHEC...解决方法：SetCheck之前或OnInitDialog中添加如下两句代码
m_tree.ModifyStyle( TVS_CHECKBOXES,...
Replacing NAs with latest non-NA value
... a data.frame (or data.table), I would like to "fill forward" NAs with the closest previous non-NA value. A simple example, using vectors (instead of a data.frame ) is the following:
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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?
I know some differences of LINQ to Entities and LINQ to Objects which the first implements IQueryable and the second implements IEnumerable and my question scope is within EF 5.
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How does lucene index documents?
I read some document about Lucene; also I read the document in this link
( http://lucene.sourceforge.net/talks/pisa ).
4 An...