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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?
I am building a small chat application for friends, but unsure about how to get information in a timely manner that is not as manual or as rudimentary as forcing a page refresh.
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How do I see if Wi-Fi is connected on Android?
... does not
support multiple connected networks of the same type. Use
getAllNetworks() and getNetworkInfo(android.net.Network) instead.
NOTE3: public static final int TYPE_WIFI is now deprecated:
This constant was deprecated in API level 28.
Applications should instead use NetworkCapabilit...
How to resolve “Error: bad index – Fatal: index file corrupt” when using Git
...
I accidentally did a :w! in a :Gstatus (from fugitive.vim). This answer saved me a lot of hair pulling.
– Laurence Gonsalves
Feb 29 '12 at 17:46
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Increment value in mysql update query
... MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information.
– aland
Mar 24 '13 at 21:55
10
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What is a handle in C++?
I have been told that a handle is sort of a pointer, but not, and that it allows you to keep a reference to an object, rather than the object itself. What is a more elaborate explanation?
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What causes java.lang.IncompatibleClassChangeError?
...out recompiling the client code. Java Language Specification §13 details all such changes, most prominently, changing non-static non-private fields/methods to be static or vice versa.
Recompile the client code against the new library, and you should be good to go.
UPDATE: If you publish a public...
Java - escape string to prevent SQL injection
...lace in java and am finding it very difficult to work with the the "replaceAll" string function. Ultimately I need a function that will convert any existing \ to \\ , any " to \" , any ' to \' , and any \n to \\n so that when the string is evaluated by MySQL SQL injections will be block...
What is token-based authentication?
... general concept behind a
token-based authentication system is
simple. Allow users to enter their
username and password in order to
obtain a token which allows them to
fetch a specific resource - without
using their username and password.
Once their token has been obtained,
the user ...
What is the list of supported languages/locales on Android?
...n_LS [English (Lesotho)]
en_MG [English (Madagascar)]
en_MH [English (Marshall Islands)]
en_MO [English (Macau)]
en_MP [English (Northern Mariana Islands)]
en_MS [English (Montserrat)]
en_MT [English (Malta)]
en_MU [English (Mauritius)]
en_MW [English (Malawi)]
en_NA [English (Namibia)]
en_NF [Engli...
Asp Net Web API 2.1 get client IP address
Hello I need get client IP that request some method in web api,
I have tried to use this code from here but it always returns server local IP,
how to get in correct way ?
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