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Is it expensive to use try-catch blocks even if an exception is never thrown?

...rown, it now does a relatively expensive operation of walking up the stack and seeing if any try blocks exist that would catch this exception. From a layman's perspective, try may as well be free. It's actually throwing the exception that costs you - but unless you're throwing hundreds or thousands ...
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innerText vs innerHTML vs label vs text vs textContent vs outerText

...ile textContent gets the content of all elements, including <script> and <style> elements, the mostly equivalent IE-specific property, innerText, does not. innerText is also aware of style and will not return the text of hidden elements, whereas textContent will. As innerText is aware ...
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Insert a commit before the root commit in Git?

...know your shell well enough. Without plumbing With regular porcelain commands, you cannot create an empty commit without checking out the newroot branch and updating the index and working copy repeatedly, for no good reason. But some may find this easier to understand: git checkout --orphan newro...
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Difference: std::runtime_error vs std::exception()

What is the difference between std::runtime_error and std::exception ? What is the appropriate use for each? Why are they different in the first place? ...
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Comparing object properties in c# [closed]

... } return self == to; } EDIT: Same code as above but uses LINQ and Extension methods : public static bool PublicInstancePropertiesEqual<T>(this T self, T to, params string[] ignore) where T : class { if (self != null && to != null) { var type = typeof(T); ...
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How do I determine the target architecture of static library (.a) on Mac OS X?

... Another option is lipo; its output is brief and more readable than otool's. An example: % lipo -info /usr/lib/libiodbc.a Architectures in the fat file: /usr/lib/libiodbc.a are: x86_64 i386 ppc % lipo -info libnonfatarchive.a input file libnonfatarchive.a is not a fa...
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How can I pass a list as a command-line argument with argparse?

I am trying to pass a list as an argument to a command line program. Is there an argparse option to pass a list as option? ...
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Reference — What does this symbol mean in PHP?

This is a collection of questions that come up every now and then about syntax in PHP. This is also a Community Wiki, so everyone is invited to participate in maintaining this list. ...
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How to override trait function and call it from the overridden function?

... You can't access its members directly. It's basically just automated copy and paste... share | improve this answer | follow | ...
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Python base64 data decode

I have the following piece of base64 encoded data, and I want to use python base64 module to extract information from it. It seems that module does not work. Can anyone tell me how? ...