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  2. Module:If not given or empty - Wikipedia

    en.wikipedia.org/wiki/Module:If_not_given_or_empty

    Text before and after is not added because when does not contain NG (for not given). {{Infobox some thing|image=}} final output is before EMPTY after. Text before and after is added because when contains EM (for empty). {{Infobox some thing|image=Green pog.svg}} final output is the equivalent of [[File:Green pog.svg|30px]].

  3. List of HTTP status codes - Wikipedia

    en.wikipedia.org/wiki/List_of_HTTP_status_codes

    501 Not Implemented The server either does not recognize the request method, or it lacks the ability to fulfil the request. Usually this implies future availability (e.g., a new feature of a web-service API). 502 Bad Gateway The server was acting as a gateway or proxy and received an invalid response from the upstream server. 503 Service ...

  4. Module:If not given or empty/doc - Wikipedia

    en.wikipedia.org/wiki/Module:If_not_given_or...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate

  5. Common Object Request Broker Architecture - Wikipedia

    en.wikipedia.org/wiki/Common_Object_Request...

    This is defined in the CORBA-defined standard exception set and the implementation-specific extended exception set. Through the exceptions, the application can determine if a call failed for reasons such as "Small problem, so try again", "The server is dead", or "The reference does not make sense."

  6. Keepalive - Wikipedia

    en.wikipedia.org/wiki/Keepalive

    Keepalive retry is the number of retransmissions to be carried out before declaring that remote end is not available When two hosts are connected over a network via TCP/IP, TCP Keepalive Packets can be used to determine if the connection is still valid, and terminate it if needed.

  7. Exception handling - Wikipedia

    en.wikipedia.org/wiki/Exception_handling

    Common exceptions include an invalid argument (e.g. value is outside of the domain of a function), [5] an unavailable resource (like a missing file, [6] a network drive error, [7] or out-of-memory errors [8]), or that the routine has detected a normal condition that requires special handling, e.g., attention, end of file. [9]

  8. Stack Overflow - Wikipedia

    en.wikipedia.org/wiki/Stack_Overflow

    Stack Overflow is written in C# using the ASP.NET MVC (Model–View–Controller) framework, and Microsoft SQL Server for the database [38] and the Dapper object-relational mapper used for data access. [39]

  9. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    The fundamental principle of ECC is to add redundant bits in order to help the decoder to find out the true message that was encoded by the transmitter. The code-rate of a given ECC system is defined as the ratio between the number of information bits and the total number of bits (i.e., information plus redundancy bits) in a given communication ...