SO 64392058

node v10.24.1
version: 1.0.0
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const {Maybe} = require ('ramda-fantasy') const {Just, Nothing, maybe} = Maybe const validate = v => v === "fred" ? Just ("Y") : Nothing () const vv = val => Maybe (val) .chain (validate) .getOrElse ('N') console .log ([ vv(null), // 'N' vv('fred'), // 'Y' vv('ding') // 'N' ])
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