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var functionName = function() {} vs function functionName() {}
..., adding features and also trying to tidy up the code and make it more consistent.
40 Answers
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How to check if the string is empty?
...means they are considered false in a Boolean context, so you can just do this:
if not myString:
This is the preferred way if you know that your variable is a string. If your variable could also be some other type then you should use myString == "". See the documentation on Truth Value Testing f...
Why is “while ( !feof (file) )” always wrong?
I've seen people trying to read files like this in a lot of posts lately:
5 Answers
5
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What's the difference between passing by reference vs. passing by value?
What is the difference between
15 Answers
15
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How do servlets work? Instantiation, sessions, shared variables and multithreading
..., it will deploy and load all its web applications. When a web application is loaded, the servlet container creates the ServletContext once and keeps it in the server's memory. The web app's web.xml and all of included web-fragment.xml files is parsed, and each <servlet>, <filter> and &l...
Why is lock(this) {…} bad?
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It is bad form to use this in lock statements because it is generally out of your control who else might be locking on that object.
In order to properly plan parallel operations, special care should be taken to consider possibl...
AI2 Media Notification
...oadDir close with "/". 1.2 (2021-09-12) If the extension is used in several apps, tapping an action button triggers the associated event in all apps at the same time. This is due to the global nature of the broadcast receivers used. Solution: The intents for the action button...
Difference between signed / unsigned char [duplicate]
So I know that the difference between a signed int and unsigned int is that a bit is used to signify if the number if positive or negative, but how does this apply to a char ? How can a character be positive or negative?
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What is move semantics?
I just finished listening to the Software Engineering radio podcast interview with Scott Meyers regarding C++0x . Most of the new features made sense to me, and I am actually excited about C++0x now, with the exception of one. I still don't get move semantics ... What is it exactly?
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How does the “this” keyword work?
...noticed that there doesn't appear to be a clear explanation of what the this keyword is and how it is correctly (and incorrectly) used in JavaScript on the Stack Overflow site.
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