Package: effect
Module: STM
The moral equivalent of if (p) exp.
Signature
declare const when: { (predicate: LazyArg<boolean>): <A, E, R>(self: STM<A, E, R>) => STM<Option.Option<A>, E, R>; <A, E, R>(self: STM<A, E, R>, predicate: LazyArg<boolean>): STM<Option.Option<A>, E, R>; }
Since v2.0.0