Is Option or Result type have apply function?

[linitachi]

Is your feature request related to a problem? Please describe. I want to using applicative in expression, like this example https://github.com/dbrattli/OSlash/wiki/Functors,-Applicatives,-And-Monads-In-Pictures#applicatives

Describe the solution you'd like

a = Some(5)
b = lambda x: Some(x)
a.apply(b)

thanks!

[phi-friday]

You can use a method bind.

import expression as ex

a = ex.Some(5)
b = lambda x: ex.Some(x)
a.bind(b)

[linitachi]

Thanks for your reply! I think bind is a flatmap and it's diffenrent from applicative, if there are any applicative just like fp-ts apply? https://gcanti.github.io/fp-ts/modules/Apply.ts.html

Thank you again for your reply!

[phi-friday]

Thanks for your reply! I think bind is a flatmap and it's diffenrent from applicative, if there are any applicative just like fp-ts apply? https://gcanti.github.io/fp-ts/modules/Apply.ts.html

Thank you again for your reply!

@linitachi I'm sorry I left a comment without reading it properly.

[u3kkasha]

@linitachi Check this out : Effects

[u3kkasha]

You can also use the member function called map2 >>> Some(8).map2(lambda x,y: x+y, Some(6)) Some 14