ZoneBinaryCallback<R, T1, T2> typedef
A two-argument function, like the argument to Zone.runBinary.
Implementation
typedef ZoneBinaryCallback<R, T1, T2> = R Function(T1, T2);A two-argument function, like the argument to Zone.runBinary.
typedef ZoneBinaryCallback<R, T1, T2> = R Function(T1, T2);