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Python string class like StringBuilder in C#?

... you would do the formatting separately. For insertion and deletion at a character level, you would keep a list of length-one strings. (To make this from a string, you'd call list(your_string). You could also use a UserString.MutableString for this. (c)StringIO.StringIO is useful for things that w...
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What's faster, SELECT DISTINCT or GROUP BY in MySQL?

...'t, then use DISTINCT. GROUP BY in MySQL sorts results. You can even do: SELECT u.profession FROM users u GROUP BY u.profession DESC and get your professions sorted in DESC order. DISTINCT creates a temporary table and uses it for storing duplicates. GROUP BY does the same, but sortes the disti...
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this.setState isn't merging states as I would expect

...do recursive merge. You can use the value of the current state this.state.selected to construct a new state and then call setState() on that: var newSelected = _.extend({}, this.state.selected); newSelected.name = 'Barfoo'; this.setState({ selected: newSelected }); I've used function _.extend() ...
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How to get label of select option with jQuery?

The value can be retrieved by $select.val() . 11 Answers 11 ...
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Why is  appearing in my HTML? [duplicate]

I see this character in Firebug  . 10 Answers 10 ...
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How do I run a batch file from my Java Application?

... int i = 0; while( (i = is.read() ) != -1) { System.out.print((char)i); } } catch(IOException ioException) { System.out.println(ioException.getMessage() ); } share | improve thi...
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What are the differences between poll and select?

I am referring to the POSIX standard select and poll system C API calls. 3 Answers ...
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UITextView style is being reset after setting text property

... Sitting with this for hours, I found the bug. If the property "Selectable" = NO it will reset the font and fontcolor when setText is used. So turn Selectable ON and the bug is gone. share | ...
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Insertion Sort vs. Selection Sort

I am trying to understand the differences between Insertion Sort and Selection Sort. 20 Answers ...
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Replace all 0 values to NA

... but what if in the columns 6 and 7 - the datatype is char and no replacement should be done. In my problem, I need replacement only in columns 12 to 15 but the whole df has 21 columns (many must not be touched at all). – userJT Feb 20 '15 ...