What’s the means of the symbol “^.”, “^?” and “.:” ?


What’s the means of the symbol “^.”, “^?” and “.:” ?

Hello everyone,

I'm newbie in haskell. In module import, many symbol lead me to confuse. Like below:

import Control.Lens (at, has, ix, view, (^.), (^?))

import Data.Aeson (Value, withObject, (.:))

import Turtle hiding (env, has, view, (<>))

I have been tried search by google, but there's no result to display. Can anyone tell me the difference about ^., ^?, .:, and <> ??

Submitted July 17, 2017 at 11:08AM by Bailantaotao
via reddit http://ift.tt/2uq0KFN

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