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How to find out client ID of component for ajax update/render? Cannot find component with expression

...to a <p:tab> of a <p:tabView> residing in a <p:layoutUnit> of a <p:layout> . Here is the inner part of the code (starting from p:tab component); the outer part is trivial. ...
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Why do std::shared_ptr work

I found some code using std::shared_ptr to perform arbitrary cleanup at shutdown. At first I thought this code could not possibly work, but then I tried the following: ...
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Read an Excel file directly from a R script

...do this directly is that you may want to examine the spreadsheet to see if it has glitches (weird headers, multiple worksheets [you can only read one at a time, although you can obviously loop over them all], included plots, etc.). But for a well-formed, rectangular spreadsheet with plain numbers a...
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SHA1 vs md5 vs SHA256: which to use for a PHP login?

... Neither. You should use bcrypt. The hashes you mention are all optimized to be quick and easy on hardware, and so cracking them share the same qualities. If you have no other choice, at least be sure to use a long salt and re-h...
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How to make a SPA SEO crawlable?

...wlable by google based on google's instructions . Even though there are quite a few general explanations I couldn't find anywhere a more thorough step-by-step tutorial with actual examples. After having finished this I would like to share my solution so that others may also make use of it and poss...
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Why doesn't Python have a sign function?

I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign 's sister), but no sign . ...
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Why is address zero used for the null pointer?

...: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn't dangerous; when I call malloc it returns a pointer with the value zero if it can't get me memory; I use if (p != 0) all the time to make sure passed pointers are valid, etc. ...
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Concept of void pointer in C programming

Is it possible to dereference a void pointer without type-casting in the C programming language? 15 Answers ...
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Could not load file or assembly 'Newtonsoft.Json, Version=4.5.0.0, Culture=neutral, PublicKeyToken=3

...nally posted this as a comment but as @OwenBlacker suggested I'll just put it here: If you still get an error after doing this, then what worked for me eventually is that I deleted Json.Net's <dependentAssembly> section from my .config file. Reinstall brings it back if it's not there and appa...
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Encoding URL query parameters in Java

... java.net.URLEncoder.encode(String s, String encoding) can help too. It follows the HTML form encoding application/x-www-form-urlencoded. URLEncoder.encode(query, "UTF-8"); On the other hand, Percent-encoding (also known as URL encoding) encodes space with %20. Colon is a reserved charact...