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compose #24

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wangweida opened this issue Dec 14, 2017 · 0 comments

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wangweida commented Dec 14, 2017 •

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var compose = function(f, g) {
  return function(x) {
    return f(g(x))
  }
}

从右向左的数据流向都是先g()，然后f()
所以满足结合律

var associative = compose(f, compose(g, h)) == compose(compose(f, g), h)

http://jsbin.com/wavusajipe/edit?html,js,console

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