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What's the difference between the atomic and nonatomic attributes?

...o are identical; "atomic" is the default behavior (note that it is not actually a keyword; it is specified only by the absence of nonatomic -- atomic was added as a keyword in recent versions of llvm/clang). Assuming that you are @synthesizing the method implementations, atomic vs. non-atomic chang...
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How to list all tags along with the full message in git?

I want git to list all tags along with the full annotation or commit message. Something like this is close: 8 Answers ...
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Escaping regex string

...this: 4.2.3 re Module Contents escape(string) Return string with all non-alphanumerics backslashed; this is useful if you want to match an arbitrary literal string that may have regular expression metacharacters in it. A simplistic example, search any occurence of the provided string opt...
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JavaScript private methods

... } this.use_restroom = function() { // use_restroom is visible to all private_stuff(); } this.buy_food = function() { // buy_food is visible to all private_stuff(); } } share ...
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What are the differences between numpy arrays and matrices? Which one should I use?

...ted/numpy.matrix.html As other answers already state that you can achieve all the operations with NumPy arrays. share | improve this answer | follow | ...
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Tracking the script execution time in PHP

..."; echo "It spent " . rutime($ru, $rustart, "stime") . " ms in system calls\n"; Note that you don't need to calculate a difference if you are spawning a php instance for every test. share | im...
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How to change the type of a field?

...(x)) and then save the document again. If you need to do this programmatically and entirely from the shell, you can use the find(...).forEach(function(x) {}) syntax. In response to the second comment below. Change the field bad from a number to a string in collection foo. db.foo.find( { 'bad' :...
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Find object in list that has attribute equal to some value (that meets any condition)

...eat solution, but how do i modify your line so that I can make x.value actually mean x.fieldMemberName where that name is stored in value? field = "name" next((x for x in test_list if x.field == value), None) so that in this case, i am actually checking against x.name, not x.field ...
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Is bool a native C type?

... in the current C - C99, but not in C89/90. In C99 the native type is actually called _Bool, while bool is a standard library macro defined in stdbool.h (which expectedly resolves to _Bool). Objects of type _Bool hold either 0 or 1, while true and false are also macros from stdbool.h. Note, BTW, t...
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How to extract the decision rules from scikit-learn decision-tree?

...sion of sklearn, because some values of tree.tree_.feature are -2 (specifically for leaf nodes). There is no need to have multiple if statements in the recursive function, just one is fine. share | ...