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- var f = R.pipe(Math.pow, R.negate, R.inc);
- f(3, 4); // -(3^4) + 1
- // parseJson :: String -> Maybe *
- // get :: String -> Object -> Maybe *
- // getStateCode :: Maybe String -> Maybe String
- var getStateCode = R.pipeK(
- parseJson,
- get("user"),
- get("address"),
- get("state"),
- R.compose(Maybe.of, R.toUpper)
- );
- getStateCode('{"user":{"address":{"state":"ny"}}}');
- //=> Just('NY')
- getStateCode("[Invalid JSON]");
- //=> Nothing()
- // followersForUser :: String -> Promise [User]
- var followersForUser = R.pipeP(db.getUserById, db.getFollowers);
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