The Elk Shell Language

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Function References ​

Function references are made using the & symbol. This can be done on both regular functions and programs. In order to call a function using a function reference, the call function is used.

elk
let f = &len
f | call abc #=> 3

let ouput = if userEcho: &echo else &println
output | call hello world #=> hello world
let f = &len
f | call abc #=> 3

let ouput = if userEcho: &echo else &println
output | call hello world #=> hello world

It is also possible to get references of partial functions calls.

elk
let f = &op::add(3)
f | call(4) | println #=> 7

[1, 2, 3]
    | map => &op::mul(2)
    | println #=> [2, 4, 6]
let f = &op::add(3)
f | call(4) | println #=> 7

[1, 2, 3]
    | map => &op::mul(2)
    | println #=> [2, 4, 6]