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How to count items in a Go map?
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Use len(m). From http://golang.org/ref/spec#Length_m>and m>_capacitm>y m>
len(s) string tm>y m>pe string length in bm>y m>tes
[n]T, *[n]T arram>y m> length (== n)
[]T slice length
map[K]T map length (number of defined kem>y m>s)
c...
JavaScript % (modulo) gives a negative result for negative numbers
...ug". The modulo operation is not verm>y m> well defined over negative numbers, m>and m> different computing environments hm>and m>le it differentlm>y m>. Wikipedia's article on the modulo operation covers it prettm>y m> well.
– Daniel Prm>y m>den
Dec 17 '10 at 4:08
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How to color Sm>y m>stem.out.println output? [duplicate]
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No, but there are third partm>y m> API's that can hm>and m>le it
http://www.javaworld.com/javaworld/javaqa/2002-12/02-qa-1220-console.html
Edit: of course there are newer articles than that one I posted, the information is still viable though.
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What are Runtime.getRuntime().totalMemorm>y m>() m>and m> freeMemorm>y m>()?
... Runtime.getRuntime().totalMemorm>y m>() , Runtime.getRuntime().freeMemorm>y m>() , m>and m> Runtime.getRuntime().maxMemorm>y m>() is.
7 Ans...
Difference between method m>and m> function in Scala
...cification tell us. Chapter 3 (tm>y m>pes) tell us about Function Tm>y m>pes (3.2.9) m>and m> Method Tm>y m>pes (3.3.1). Chapter 4 (basic declarations) speaks of Value Declaration m>and m> Definitions (4.1), Variable Declaration m>and m> Definitions (4.2) m>and m> Functions Declarations m>and m> Definitions (4.6). Chapter 6 (expressions) ...
UIView Infinite 360 degree rotation animation?
I'm trm>y m>ing to rotate a UIImageView 360 degrees, m>and m> have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position.
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Throwing cats out of windows
...m>y m> write a little DP (dm>y m>namic programming) for the general case of n floors m>and m> m cats.
The main formula, a[n][m] = min(max(a[k - 1][m - 1], a[n - k][m]) + 1) : for each k in 1..n, should be self-explanatorm>y m>:
If first cat is thrown from k-th floor m>and m> dies, we now have k - 1 floors to check (all...
Adding a Method to an Existing Object Instance
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In Pm>y m>thon, there is a difference between functions m>and m> bound methods.
>>> def foo():
... print "foo"
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>>> class A:
... def bar( self ):
... print "bar"
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>>> a = A()
>>> foo
<function foo at 0x00A98D70>
>>&g...
How to check if a string contains a substring in Bash
... that spaces in the needle string need to be placed between double quotes, m>and m> the * wildcards should be outside. Also note that a simple comparison operator is used (i.e. ==), not the regex operator =~.
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How to find all occurrences of a substring?
Pm>y m>thon has string.find() m>and m> string.rfind() to get the index of a substring in a string.
20 Answers
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