Run results for: pipe (2 flavors) vs compose

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.110 Safari/537.36

Browser: Chrome 70

Operating system: Mac OS X 10.13.4

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Pipe	2864710.0 Ops/sec
Pipe2	2013821.0 Ops/sec
Compose	3022994.0 Ops/sec

Script Preparation code:

var _compose = (f, g) => (...args) => f(g(...args))
var compose = (...funcs) => funcs.reduce(_compose)

var _pipe = (f, g) => (...args) => g(f(...args))
var pipe = (...funcs) => funcs.reduce(_pipe)

var pipe2 = (...funcs) => funcs.reduceRight(_compose)

Tests:

Pipe
pipe(x => x + 'b', x => x + 'c')('a')
Pipe2
pipe2(x => x + 'b', x => x + 'c')('a')
Compose
compose(x => x + 'c', x => x + 'b')('a')

Run results for: pipe (2 flavors) vs compose

Pipe

Pipe2

Compose