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angular.service vs angular.factory

...t = myFactory.getArtist(); }); app.factory('myFactory', function(){ var _artist = 'Shakira'; var service = {}; service.getArtist = function(){ return _artist; } return service; }); 2) When you’re using Service, Angular instantiates it behind the scenes with the ‘new’ keywor...
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Log exception with traceback

...g with the trace information, prepended with a message. import logging LOG_FILENAME = '/tmp/logging_example.out' logging.basicConfig(filename=LOG_FILENAME, level=logging.DEBUG) logging.debug('This message should go to the log file') try: run_my_stuff() except: logging.exception('Got excep...
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How to convert an enum type variable to a string?

...ction for each enumeration that performs the conversion to string: enum OS_type { Linux, Apple, Windows }; inline const char* ToString(OS_type v) { switch (v) { case Linux: return "Linux"; case Apple: return "Apple"; case Windows: return "Windows"; defau...
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What is the difference between g++ and gcc?

...as a few extra macros. Extra Macros when compiling *.cpp files: #define __GXX_WEAK__ 1 #define __cplusplus 1 #define __DEPRECATED 1 #define __GNUG__ 4 #define __EXCEPTIONS 1 #define __private_extern__ extern share ...
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How can I get the behavior of GNU's readlink -f on a Mac?

...in your own script where you'd like to call readlink -f #!/bin/sh TARGET_FILE=$1 cd `dirname $TARGET_FILE` TARGET_FILE=`basename $TARGET_FILE` # Iterate down a (possible) chain of symlinks while [ -L "$TARGET_FILE" ] do TARGET_FILE=`readlink $TARGET_FILE` cd `dirname $TARGET_FILE` T...
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Multiple linear regression in Python

... sklearn.linear_model.LinearRegression will do it: from sklearn import linear_model clf = linear_model.LinearRegression() clf.fit([[getattr(t, 'x%d' % i) for i in range(1, 8)] for t in texts], [t.y for t in texts]) Then clf.coef_...
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Converting between datetime, Timestamp and datetime64

...amp(ts) datetime.datetime(2012, 12, 4, 19, 51, 25, 362455) >>> np.__version__ '1.8.0.dev-7b75899' The above example assumes that a naive datetime object is interpreted by np.datetime64 as time in UTC. To convert datetime to np.datetime64 and back (numpy-1.6): >>> np.datetime6...
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Kotlin secondary constructor

...in with constructor but you need to skip default constructor class AuthLog(_data: String) class AuthLog { constructor(_data: String): this(_data, -1) constructor(_numberOfData: Int): this("From count ", _numberOfData) private constructor(_data: String, _numberOfData: Int) } For mo...
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How is a CRC32 checksum calculated?

... 1100001010 = Quotient (nobody cares about the quotient) _______________ 10011 ) 11010110110000 = Augmented message (1101011011 + 0000) =Poly 10011,,.,,.... -----,,.,,.... 10011,.,,.... 10011,.,,.... -----,.,,.... 00001.,,.... ...
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Check if object is file-like in Python

... why what about operators like __add__, __lshift__ or __or__ in custom classes? (file object and API: docs.python.org/glossary.html#term-file-object ) – n611x007 Sep 8 '12 at 12:56 ...