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suissa/pipe.example.01.errado.js

Created October 21, 2017 20:07
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pipe.example.01.errado.js
const pipe = (...fns ) =>
fns.reduce( ( f, g ) => (...args ) => g( f(...args ) ) )
const fx1 = ( x ) => x
const fx2 = ( x ) => x * x
const fx3 = ( x ) => x * x * x
// f(x) = x^3 + x^2 + x
const result = pipe( fx3, fx2, fx1 )( 2 )
// fx3 = 2^3 = 8
// fx2 = 8^2 = 64
// fx1 = 64
console.log( result )
// 64
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