大约有 43,000 项符合查询结果(耗时:0.0639秒) [XML]

https://stackoverflow.com/ques... 

My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets

I have read many posts on SO and the web regarding the keywords in my question title and learned a lot from them. Some of the questions I read are related to specific implementation challenges while others focus on general concepts. I just want to make sure I understood all of the concepts and the r...
https://stackoverflow.com/ques... 

The written versions of the logical operators

This is the only place I've ever seen and , or and not listed as actual operators in C++. When I wrote up a test program in NetBeans, I got the red underlining as if there was a syntax error and figured the website was wrong, but it is NetBeans which is wrong because it compiled and ran as exp...
https://stackoverflow.com/ques... 

What is the difference between i++ and ++i?

I've seen them both being used in numerous pieces of C# code, and I'd like to know when to use i++ or ++i ( i being a number variable like int , float , double , etc). Anyone who knows this? ...
https://stackoverflow.com/ques... 

WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]

So I'm looking to build a chat app that will allow video, audio, and text. I spent some time researching into Websockets and WebRTC to decide which to use. Since there are plenty of video and audio apps with WebRTC, this sounds like a reasonable choice, but are there other things I should consider? ...
https://stackoverflow.com/ques... 

First-time database design: am I overengineering? [closed]

I'm a first year CS student and I work part time for my dad's small business. I don't have any experience in real world application development. I have written scripts in Python, some coursework in C, but nothing like this. ...
https://stackoverflow.com/ques... 

Shiro vs. SpringSecurity [closed]

... making security easier to implement, Shiro seems to be much more coherent and easier to understand. I am looking for lists of pros and cons between these two frameworks. ...
https://stackoverflow.com/ques... 

iOS / Android cross platform development [closed]

I've been playing around with developing Android apps in Java for a while and am starting to get a handle on it. However if I want to on start on an iOS version I need to code everything from scratch - which is, well, undesirable. ...
https://stackoverflow.com/ques... 

Why is there no logical xor in JavaScript?

... JavaScript traces its ancestry back to C, and C does not have a logical XOR operator. Mainly because it's not useful. Bitwise XOR is extremely useful, but in all my years of programming I have never needed a logical XOR. If you have two boolean variables you can mim...
https://stackoverflow.com/ques... 

What is a mixin, and why are they useful?

...ming Python ", Mark Lutz mentions "mixins". I'm from a C/C++/C# background and I have not heard the term before. What is a mixin? ...
https://stackoverflow.com/ques... 

Why would you use String.Equals over ==? [duplicate]

I recently was introduced to a large codebase and noticed all string comparisons are done using String.Equals() instead of == ...