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Argparse optional positional arguments?

...arguments: dir optional arguments: -h, --help show this help message and exit -v share | improve this answer | follow | ...
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#ifdef #ifndef in Java

... to 3 seconds. But when I defined the variables as static class variables (and not a function local variable) the running time returned to 1 second. Thanks for the help. – jutky Nov 28 '09 at 22:34 ...
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“using namespace” in c++ headers

... and how should we streamline the template functions--which are supposed to be in the headers? typedefs? – Chris Mar 11 '18 at 11:43 ...
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Why do I get a warning icon when I add a reference to an MEF plugin project?

...test the core class of a plugin by directly referencing the plugin project and instantiating the plugin class. When I create a test Console App project and add a project reference to the plugin project, I get a warning icon (yellow triangle with exclamation mark) next to the reference in the Referen...
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Change the selected value of a drop-down list with jQuery

...s: [jQuery.val] checks, or selects, all the radio buttons, checkboxes, and select options that match the set of values. This behavior is in jQuery versions 1.2 and above. You most likely want this: $("._statusDDL").val('2'); ...
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php var_dump() vs print_r()

What is the difference between var_dump() and print_r() in terms of spitting out an array as string? 12 Answers ...
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Unix tail equivalent command in Windows Powershell

...ile (typical size is 500MB-2GB). I am looking for a equivalent of Unix command tail for Windows Powershell. A few alternatives available on are, ...
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What does curly brackets in the `var { … } = …` statements do?

...om arrays or objects using a syntax that mirrors the construction of array and object literals. ... One particularly useful thing you can do with destructuring assignment is to read an entire structure in a single statement, although there are a number of interesting things you can do with them,...
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Is there a way to pass optional parameters to a function?

...a way in Python to pass optional parameters to a function while calling it and in the function definition have some code based on "only if the optional parameter is passed" ...
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Best Practice - NSError domains and codes for your own project/app

...ameworks, but what is the best practice regarding setting up error domains and custom error codes for your own project/app ? ...