Snippet
compose() & pipe()
edit
I go over function composition in this blog post, so please read the post for a more detailed explanation.
const compose =
(...fns) =>
x =>
fns.reduceRight((acc, fn) => fn(acc), x)
const pipe =
(...fns) =>
x =>
fns.reduce((acc, fn) => fn(acc), x)If you want to get real fancy, you can split out and share the reducer.
const apply = (value, fn) => fn(value)
const compose =
(...fns) =>
x =>
fns.reduceRight(apply, x)
const pipe =
(...fns) =>
x =>
fns.reduce(apply, x)Liked the post?
Give the author a dopamine boost with a few "beard strokes". Click the beard
up to 50 times to show your appreciation.
Kyle Shevlin is the founder & lead software engineer of Agathist, a software development firm with a mission to build good software with good people.
