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Discussion on: Piping JavaScript

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alexcasalboni profile image
Alex Casalboni

Coming from the "old world", it looks a bit weird at first :)

Looking at |> addDays(2), I would expect addDays(2) to be evaluated before being used as a function. In my mind, this can only work if addDays(2) actually returns a function.

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kayis profile image
K (he/him) Author • Edited on

> In my mind, this can only work if addDays(2) actually returns a function.

This is what it does :)

A regular version of that function would look like that:

function addDays(amount, date) {...}

addDays(2, date);

A curried version looks like that:

const addDays = amount => date => {...};

addDays(2)(date);