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unix - head AND tail of file
Say you have a txt file, what is the command to view the top 10 lines and bottom 10 lines of file simultaneously?
20 Answer...
How to check if a string contains a substring in Bash
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3818
You can use Marcus's answer (* wildcards) outside a case statement, too, if you use double brac...
What do you call the -> operator in Ruby?
... lambda defined using -> is called lambda literal.
succ = ->(x){ x+1 }
succ.call(2)
The code is equivalent to the following one.
succ = lambda { |x| x + 1 }
succ.call(2)
Informally, I have heard it being called stabby lambda or stabby literal.
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Custom numeric format string to always display the sign
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301
Yes, you can.
There is conditional formatting. See Conditional formatting in MSDN
eg:
string...
How to get the last N records in mongodb?
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15 Answers
15
Active
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Can you supply arguments to the map(&:method) syntax in Ruby?
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141
You can create a simple patch on Symbol like this:
class Symbol
def with(*args, &block)...
Force HTML5 youtube video
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180
I've found the solution :
You have to add the html5=1 in the src attribute of the iframe :
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Why are flag enums usually defined with hexadecimal values
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186
Rationales may differ, but an advantage I see is that hexadecimal reminds you: "Okay, we're no...
How can I eliminate slow resolving/loading of localhost/virtualhost (a 2-3 second lag) on Mac OS X L
...nvironments on Mac OS X Lion (brand new macbook air purchased in January 2012), I have noticed that resolving to a virtual host is very slow (around 3 seconds) the first time but after that is fast as long as I continue loading it regularly.
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