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How do I get out of a screen without typing 'exit'?
...it screen and terminate all programs in this screen. Helpful, for example, if you need to close tty connection.
Ctrl-a+d or - Ctrl-a+Ctrl-d - "minimize" screen, screen -r to restore it.
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How to sort a list/tuple of lists/tuples by the element at a given index?
...e it as tup, or t, or whatever you like and it'll still work. tup here specifies index of the list's tuple, so 1 means that sorting will be performed by the second values of tuples from the original list (2, 5, 8).
– Neurotransmitter
Jul 26 '16 at 15:13
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How to send multiple data fields via Ajax? [closed]
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The correct syntax is:
data: {status: status, name: name},
As specified here: http://api.jquery.com/jQuery.ajax/
So if that doesn't work, I would alert those variables to make sure they have values.
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How to sort a Ruby Hash by number value?
...ue}
# ==> [["siteb.com", 9], ["sitec.com", 10], ["sitea.com", 745]]
If you need a hash as a result, you can use to_h (in Ruby 2.0+)
metrics.sort_by {|_key, value| value}.to_h
# ==> {"siteb.com" => 9, "sitec.com" => 10, "sitea.com", 745}
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Can you write virtual functions / methods in Java?
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I wonded if it's really true, because for what I've read, in Java, dynamic method dispatch happens only for the object the method is called on - as explained here so the example explaining virtual functions for C++ here is not valid ...
How to set breakpoints on future shared libraries with a command flag
...answer that someone gave me on IRC:
(gdb) apropos pending
actions -- Specify the actions to be taken at a tracepoint
set breakpoint -- Breakpoint specific settings
set breakpoint pending -- Set debugger's behavior regarding pending breakpoints
show breakpoint -- Breakpoint specific settings
show b...
HttpSecurity, WebSecurity and AuthenticationManagerBuilder
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great answer. I am wondering if we ever need to call permitAll on HttpSecurity? Can't we just ignore all open url's like /register or /login using WebSecurity? Then why does all tutorials or answers use HttpSecurity.permitAll for /register and /login but...
Cannot find Dumpbin.exe
...tudio 2015 \ Visual Studio Tools \ Developer Command Prompt for
VS2015
If you want to make it available in the regular command prompt, then add the utility's location to the PATH environment variable on your machine.
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What is __declspec and when do I need to use it?
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This is a Microsoft specific extension to the C++ language which allows you to attribute a type or function with storage class information.
Documentation
__declspec (C++)
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Setting Icon for wpf application (VS 08)
...mments when running from the VS debugger the generic icon is still shown.
If you want to have your icon even when you're pressing F5, you can add in the Main Window:
<Window x:Class="myClass"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.micro...