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[JS][6kyu] Function Composition #5298

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[JS][6kyu] Function Composition #5298

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30 changes: 30 additions & 0 deletions codewars/6kyu/function-composition/koronya.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,30 @@
// [JS][6kyu] Function Composition
// function-composition
// https://www.codewars.com/kata/5421c6a2dda52688f6000af8/train/javascript

// prettier-ignore
const compose = (f, g) => (...args) => f(g(...args))

function compose2(f, g) {
return function () {
return f(g(...arguments))
}
}

const add = function (a) {
return a + 1
}
const id = function (a) {
return a
}

compose(add, id)(0)

const add1 = function (a) {
return a + 1
}
const addAll3 = function (a, b, c) {
return a + b + c
}

compose(add1, addAll3)(1, 2, 3)