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Custom exception type

...ror detected. Please contact the <a href=\"mailto:sysadmin@acme-widgets.com\">system administrator</a>.", toString: function(){return this.name + ": " + this.message;} }; share | ...
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What is the common header format of Python files?

...d you will not have access to it in interactive sessions (i.e. through obj.__doc__) or when generating documentation with automated tools. Import built-in modules first, followed by third-party modules, followed by any changes to the path and your own modules. Especially, additions to the path and n...
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Why is the String class declared final in Java?

...ity and final in some case might be really important. HTH References: http://chaoticjava.com/posts/how-does-garbage-collection-work/ http://chaoticjava.com/posts/gc-tips-and-memory-leaks/ http://java.sun.com/j2se/1.5/pdf/jdk50_ts_guide.pdf ...
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List directory tree structure in python?

... Here's a function to do that with formatting: import os def list_files(startpath): for root, dirs, files in os.walk(startpath): level = root.replace(startpath, '').count(os.sep) indent = ' ' * 4 * (level) print('{}{}/'.format(indent, os.path.basename(root))) ...
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Function in JavaScript that can be called only once

...// "do something" happens something(); // nothing happens In answer to a comment by @Vladloffe (now deleted): With a global variable, other code could reset the value of the "executed" flag (whatever name you pick for it). With a closure, other code has no way to do that, either accidentally or de...
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Is there a pattern for initializing objects created via a DI container

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
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View a list of recent documents in Vim

...lugin automatically stores the file names as you open/edit them in Vim. http://www.vim.org/scripts/script.php?script_id=521 share | improve this answer | follow ...
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Why does += behave unexpectedly on lists?

... The general answer is that += tries to call the __iadd__ special method, and if that isn't available it tries to use __add__ instead. So the issue is with the difference between these special methods. The __iadd__ special method is for an in-place addition, that is it mut...
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Best way to parse command-line parameters? [closed]

What's the best way to parse command-line parameters in Scala? I personally prefer something lightweight that does not require external jar. ...
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What does template mean?

...eUploader: { brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...