unary

Creates a unary function wrapper which extracts a specific argument by index and applies the argument to the original unary function.

npm install unary --save

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Examples

require

var unary = require('unary')

full application

var odds = unary(odd, 1)
var fruit = [ 'apple', 'pear', 'pineapple', 'strawberry', 'orange', 'grapefruit' ]

fruit.filter(odds)
//=> [ 'apple', 'pineapple', 'orange' ]

functor (+ partial application)

var evens = unary(even)
var fruit = [ 'apple', 'pear', 'pineapple', 'strawberry', 'orange', 'grapefruit' ]

fruit.filter(evens(1))
//=> [ 'pear', 'strawberry', 'grapefruit' ]

API

unary(fun, idx)

arguments

• fun: (Function) Unary function to wrap.
• idx: (Number) Index of argument to extract.

returns

• (Function) Wrapped unary function.

License