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Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
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What does “Could not find or load main class” mean?
A common problem that new Java developers experience is that their programs fail to run with the error message: Could not find or load main class ...
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What is “callback hell” and how and why does RX solve it?
... give a clear definition together with a simple example that explains what is a "callback hell" for someone who does not know JavaScript and node.js ?
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What is Haskell used for in the real world? [closed]
There is a lot of hype around Haskell, however, it is hard to get information on how it is used in the real world applications. What are the most popular projects / usages of Haskell and why it excels at solving these problems?
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Why do pthreads’ condition variable functions require a mutex?
...l, I’m going to be creating a mutex just to use as that argument? What is that mutex supposed to do?
10 Answers
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Intent - if activity is running, bring it to front, else start a new one (from notification)
...time so I get multiple same activities running on top of each other, which is just wrong.
8 Answers
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What are the benefits of dependency injection containers?
...of the main reasons to use an IoC (and make use of external configuration) is around the two areas of:
Testing
Production maintenance
Testing
If you split your testing into 3 scenarios (which is fairly normal in large scale development):
Unit testing
Integration testing
Black box testing
Wh...
How can mixed data types (int, float, char, etc) be stored in an array?
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You can make the array elements a discriminated union, aka tagged union.
struct {
enum { is_int, is_float, is_char } type;
union {
int ival;
float fval;
char cval;
} val;
} my_array[10];
The type member is used to hold th...
Why do people say there is modulo bias when using a random number generator?
I have seen this question asked a lot but never seen a true concrete answer to it. So I am going to post one here which will hopefully help people understand why exactly there is "modulo bias" when using a random number generator, like rand() in C++.
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How to generate a random string of a fixed length in Go?
...tring of characters only (uppercase or lowercase), no numbers, in Go. What is the fastest and simplest way to do this?
11 A...