Haskell: GHCi: unset: Unset options

:unset command is used to unset the options set by :set command.

Following are the various options used by both ‘:set’ ‘:unset’ commands.

Option	Description
+m	Allow multiline commands
+r	Revert top-level expressions after each evaluation
+s	Print timing/memory stats after each evaluation
+t	Print type after evaluation
-<flags>	Most GHC command line flags can also be set here. (eg. -v2, -XFlexibleInstances, etc.)

Prelude> let str1 = "Hello world"
Prelude> str1
"Hello world"
Prelude> 

I used the command ':set +t +s' to get type, time and memory stats after every evaluation.

Prelude> str1
"Hello world"
it :: [Char]
(0.00 secs, 516,992 bytes)
Prelude> 

I used the command ':unset +s' to unset time and memory stats.

Prelude> :unset +s
Prelude> str1
"Hello world"
it :: [Char]

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