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Get a list of distinct values in List

In C#, say I have a class called Note with three String member variables. 5 Answers 5 ...
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Way to get all alphabetic chars in an array in PHP?

Is there a way to get all alphabetic chars (A-Z) in an array in PHP so I can loop through them and display them? 14 Answers...
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Mercurial undo last commit

How can I undo my last accidentally commited (not pushed) change in Mercurial? 7 Answers ...
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Sort array of objects by string property value

I have an array of JavaScript objects: 47 Answers 47 ...
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shell init issue when click tab, what's wrong with getcwd?

once i click Tab on bash, the error message will appear, what's wrong? 4 Answers 4 ...
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Can someone give an example of cosine similarity, in a very simple, graphical way?

Cosine Similarity article on Wikipedia 10 Answers 10 ...
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Customize UITableView header section

I want to customize UITableView header for each section. So far, I've implemented 23 Answers ...
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File Upload without Form

Without using any forms whatsoever, can I just send a file/files from <input type="file"> to 'upload.php' using POST method using jQuery. The input tag is not inside any form tag. It stands individually. So I don't want to use jQuery plugins like 'ajaxForm' or 'ajaxSubmit'. ...
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ALTER TABLE without locking the table?

When doing an ALTER TABLE statement in MySQL, the whole table is read-locked (allowing concurrent reads, but prohibiting concurrent writes) for the duration of the statement. If it's a big table, INSERT or UPDATE statements could be blocked for a looooong time. Is there a way to do a "hot alter", li...
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jQuery: count number of rows in a table

How do I count the number of tr elements within a table using jQuery? 11 Answers 11 ...