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How does facebook, gmail send the real time notification?
I have read some posts about this topic and the answers are comet, reverse ajax, http streaming, server push, etc.
5 Answer...
Can anyone explain what JSONP is, in layman terms? [duplicate]
...
Preface:
This answer is over six years old. While the concepts and application of JSONP haven't changed
(i.e. the details of the answer are still valid), you should
look to use CORS where possible
(i.e. your server or
API supports it, and the
browser support is adequate),
as JSONP has in...
Why we should not use protected static in java
...able exists at class level, it does not exist separately for each instance and it does not have an independent existence in classes which extend me.
Think about what protected means:
This variable can be seen by this class, classes in the same package and classes which extend me.
The two mea...
What is the “volatile” keyword used for?
... correct usage. Could you please tell me what it should be used for in C# and in Java?
8 Answers
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var functionName = function() {} vs function functionName() {}
...intaining someone else's JavaScript code. I'm fixing bugs, adding features and also trying to tidy up the code and make it more consistent.
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UIDevice uniqueIdentifier deprecated - What to do now?
...ght that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming.
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Calling Java from Python
What is the best way to call java from python?
(jython and RPC are not an option for me).
9 Answers
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What are the differences between double-dot “..” and triple-dot “…” in Git commit ranges?
Some Git commands take commit ranges and one valid syntax is to separate two commit names with two dots .. , and another syntax uses three dots ... .
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Jackson enum Serializing and DeSerializer
I'm using JAVA 1.6 and Jackson 1.9.9 I've got an enum
14 Answers
14
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Scala: Abstract types vs generics
...s Type System
A Conversation with Martin Odersky, Part III
by Bill Venners and Frank Sommers (May 18, 2009)
Update (October2009): what follows below has actually been illustrated in this new article by Bill Venners:
Abstract Type Members versus Generic Type Parameters in Scala (see summary at the ...