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flip-flop

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Not who you're looking for? Others named flip-flop: circuit that has two stable states and can be used to store · type of sandal · derogatory term for a change of policy or opinion · album by Guadalcanal Diary

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flip-flop across IJR

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Not who you're looking for? Others named flip-flop: circuit that has two stable states and can be used to store · type of sandal · derogatory term for a change of policy or opinion · album by Guadalcanal Diary

In computer programming, a flip-flop is a seldom-used syntactic construct which allows a boolean to flip from false to true when a first condition is met and then back to false when a second condition is met. The syntax is available in the programming languages Perl and Ruby. Similar logic is available in sed and awk.

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In computer programming, a flip-flop is a seldom-used syntactic construct which allows a boolean to flip from false to true when a first condition is met and then back to false when a second condition is met. The syntax is available in the programming languages Perl and Ruby. Similar logic is available in sed and awk. A flip-flop with first condition A and second condition B is not equivalent to "if A and not B", as the former has persistent state and is true even if A is no longer true, as long as at some point in the past A was true and B has always been false. Example The following Ruby code prints the numbers 4 through 6:

From Wikipedia (CC BY-SA 4.0).

flip-flop across IJR

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