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What does the -ObjC linker flag do?
...braries that contain categories on existing classes.
From this Technical Q&A
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What is the difference between RegExp’s exec() function and String’s match() function?
...only when the regex is not global).
Another use with Exec, is getting the index or position, of a match. When you have a variable for your regex, you can use .lastIndex and get the position of the matching. A regex object has .lastIndex, and the regex object is what you do .exec on. Dot match is...
How much size “Null” value takes in SQL Server
...lso depends a bit (From the comments section here) "For heap and clustered index record, there's always a NULL bitmap . For non-clustered indexes, there won't be if all columns in the index are NOT NULL."
– Martin Smith
Sep 16 '10 at 23:51
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Delete directory with files in it?
... Windows version: system('rmdir '.escapeshellarg($path).' /s /q');
– Cypher
Jan 19 '14 at 2:03
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How do you embed binary data in XML?
...
XML is so versatile...
<DATA>
<BINARY>
<BIT index="0">0</BIT>
<BIT index="1">0</BIT>
<BIT index="2">1</BIT>
...
<BIT index="n">1</BIT>
</BINARY>
</DATA>
XML is like violence - If it doesn't so...
How do I do string replace in JavaScript to convert ‘9.61’ to ‘9:61’?
...;
$("#text").val(val.replace('.', ':'));
From the docs:
.val( function(index, value) )
function(index, value)A function
returning the value to set.
This method is typically used to set
the values of form fields. For
<select multiple="multiple">
elements, multiple s can b...
How can you undo the last git add?
...adds since the last commit. git reset without a commit argument resets the index (unstages staged changes):
git reset
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What is the difference between . (dot) and $ (dollar sign)?
...canum In this example, something like putStrLn . show . (+1) $ 1 would be equivalent. You are correct in that most (all?) infix operators are functions.
– Michael Steele
Nov 8 '10 at 15:28
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Is False == 0 and True == 1 an implementation detail or is it guaranteed by the language?
...d not work with an object which is not a subclass of integer, because list indexing only works with integers, or objects that define a __index__ method (thanks mark-dickinson).
Edit:
It is true of the current python version, and of that of Python 3. The docs for python 2.6 and the docs for Python ...
Convert an image to grayscale in HTML/CSS
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For posterity: @TomAuger, this Q&A has specific instructions for IE10.
– Barney
Sep 25 '14 at 10:32
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