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Python exit commands - why so many and when should each be used?

...ution. The choices I've found are: quit() , exit() , sys.exit() , os._exit() 4 Answers ...
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“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?

...y 4 bytes in UTF-8. You may also have to set the server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode otherwise: For example, to use 4-byte UTF-8 character sets with Connector/J, configure the MySQL server with cha...
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Using braces with dynamic variable names in PHP

...rom phpNET manual php.net/manual/ru/language.variables.variable.php $price_for_monday = 10; $price_for_tuesday = 20; $today = 'tuesday'; $price_for_today = ${ 'price_for_' . $today}; echo $price_for_today; // will return 20 – Vladimir Ch Apr 20 '18 at 21:08 ...
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How do I get the different parts of a Flask request's url?

...ributes would be the following: path /page.html script_root /myapplication base_url http://www.example.com/myapplication/page.html url http://www.example.com/myapplication/page.html?x=y url_root http://www.example.com/myapplication/ ...
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What are the differences between numpy arrays and matrices? Which one should I use?

... Or just np.linalg.matrix_power(mat, n) – Eric Feb 28 '17 at 11:16 I...
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Convert hyphens to camel case (camelCase)

...and have it included in your project. var str = 'my-hyphen-string'; str = _.camelCase(str); // results in 'myHyphenString' share | improve this answer | follow ...
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How to validate an email address in JavaScript

...s these email addresses: %2@gmail.com, "%2"@gmail.com, "a..b"@gmail.com, "a_b"@gmail.com, _@gmail.com, 1@gmail.com , 1_example@something.gmail.com are all valid, but Gmail will never allow any of these email addresses. You should do this by accepting the email address and sending an email message to...
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Why rename synthesized properties in iOS with leading underscores? [duplicate]

...ariables had to be instantiated explicitly: @interface Foo : Bar { Baz *_qux; } @property (retain) Baz *qux; @end @implementation Foo @synthesize qux = _qux; - (void)dealloc { [_qux release]; [super dealloc]; } @end People would prefix their instance variables to differentiate them from...
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How to paste over without overwriting register

...o hide this function (yet) function! RestoreRegister() let @" = s:restore_reg return '' endfunction function! s:Repl() let s:restore_reg = @" return "p@=RestoreRegister()\<cr>" endfunction " NB: this supports "rp that replaces the selection by the contents of @r vnoremap <sile...
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How to implement a rule engine?

...; // use a method call, e.g. 'Contains' -> 'u.Tags.Contains(some_tag)' return Expression.Call(left, method, right); } } Note that I used 'GreaterThan' instead of 'greater_than' etc. - this is because 'GreaterThan' is the .NET name for the operator, therefore we don't need any...