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Convert a Scala list to a tuple?
...st until runtime. But the "length" of a tuple must be encoded in its type, and hence known at compile time. For example, (1,'a',true) has the type (Int, Char, Boolean), which is sugar for Tuple3[Int, Char, Boolean]. The reason tuples have this restriction is that they need to be able to handle a non...
What do (lambda) function closures capture?
Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code:
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What is the difference between syntax and semantics in programming languages?
What is the difference between syntax and semantics in programming languages (like C, C++)?
10 Answers
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How to convert a Java 8 Stream to an Array?
... it does is find a method that takes in an integer (the size) as argument, and returns a String[], which is exactly what (one of the overloads of) new String[] does.
You could also write your own IntFunction:
Stream<String> stringStream = ...;
String[] stringArray = stringStream.toArray(size...
System.Data.SQLite Close() not releasing database file
...d the same problem a while ago while writing a DB abstraction layer for C# and I never actually got around to finding out what the issue was. I just ended up throwing an exception when you attempted to delete a SQLite DB using my library.
Anyway, this afternoon I was looking through it all again an...
Python function global variables?
... value of the result of func_A, or (3) to a local variable x with no value and (in the eyes of the compiler) no relation to "some value" or the x in func_A?
– Akshat Shekhar
May 14 '12 at 18:00
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How to take screenshot of a div with JavaScript?
...ilding something called the "HTML Quiz". It's completely ran on JavaScript and it's pretty cool.
10 Answers
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Setting an int to Infinity in C++
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And if you really need infinity as an int, write a wrapper class that overloads the comparison operators and has a boolean variable named "is_infinity".
– user142019
Dec 31 '11 at 21:22
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Why is whitespace sometimes needed around metacharacters?
A few months ago I tattooed a fork bomb on my arm, and I skipped the whitespaces, because I think it looks nicer without them. But to my dismay, sometimes (not always) when I run it in a shell it doesn't start a fork bomb, but it just gives a syntax error.
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How to convert integer timestamp to Python datetime
...mat, so I'm not sure how the timestamp is formatted. I've tried Python's standard datetime.fromordinal() and datetime.fromtimestamp() and a few others, but nothing matches. I'm pretty sure that particular number corresponds to the current date (e.g. 2012-3-16), but not much more.
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