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Java String array: is there a size of method?
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PHP “pretty print” json_encode [duplicate]
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Adjust UIButton font size to width
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Can you describe more deeply what do you mean, please?
– Zaporozhchenko Oleksandr
Jul 5 '18 at 22:46
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Difference between Mutable objects and Immutable objects [duplicate]
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+1 as you answered before @Ralph and more explicitly
– KNU
Oct 2 '14 at 16:44
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Best way to “negate” an instanceof
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If you find it more understandable, you can do something like this with Java 8 :
public static final Predicate<Object> isInstanceOfTheClass =
objectToTest -> objectToTest instanceof TheClass;
public static final Predicate&l...
How do you return from 'gf' in Vim
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tab is more convenient than buffer for me, and using nnoremap gf <C-W>gf to open in a new tab may be better.
– Searene
Feb 8 '13 at 1:47
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Writing string to a file on a new line every time
... you can subclass 'file':
class cfile(file):
#subclass file to have a more convienient use of writeline
def __init__(self, name, mode = 'r'):
self = file.__init__(self, name, mode)
def wl(self, string):
self.writelines(string + '\n')
Now it offers an additional functi...
TypeError: p.easing[this.easing] is not a function
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Convert data.frame column to a vector?
...ault, [] sets option drop=TRUE, which is what you want here. See ?'[' for more details.
> a1 = c(1, 2, 3, 4, 5)
> a2 = c(6, 7, 8, 9, 10)
> a3 = c(11, 12, 13, 14, 15)
> aframe = data.frame(a1, a2, a3)
> aframe[,'a2']
[1] 6 7 8 9 10
> class(aframe[,'a2'])
[1] "numeric"
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