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what is the difference between a portlet and a servlet?
I am asked to work on portlets and portals.
5 Answers
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Boolean operators && and ||
According to the R language definition , the difference between & and && (correspondingly | and || ) is that the former is vectorized while the latter is not.
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How to display all methods of an object?
I want to know how to list all methods available for an object like for example:
8 Answers
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Is gcc 4.8 or earlier buggy about regular expressions?
I am trying to use std::regex in a C++11 piece of code, but it appears that the support is a bit buggy. An example:
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Using -performSelector: vs. just calling the method
I'm still kind of new to Objective-C and I'm wondering what is the difference between the following two statements?
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std::function and std::bind: what are they, and when should they be used?
I know what functors are and when to use them with std algorithms, but I haven't understood what Stroustrup says about them in the C++11 FAQ .
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What Makes a Method Thread-safe? What are the rules?
Are there overall rules/guidelines for what makes a method thread-safe? I understand that there are probably a million one-off situations, but what about in general? Is it this simple?
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Do you have to put Task.Run in a method to make it async?
I'm trying to understand async await in the simplest form. I want to create a very simple method that adds two numbers for the sake of this example, granted, it's no processing time at all, it's just a matter of formulating an example here.
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When to use the brace-enclosed initializer?
In C++11, we have that new syntax for initializing classes which gives us a big number of possibilities how to initialize variables.
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What is the recommended approach towards multi-tenant databases in MongoDB?
I'm thinking of creating a multi-tenant app using MongoDB. I don't have any guesses in terms of how many tenants I'd have yet, but I would like to be able to scale into the thousands.
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