Function: reaction()

function reaction<T, FireImmediately>(
   expression: (r: IReactionPublic) => T, 
   effect: (arg: T, prev: FireImmediately extends true ? T | undefined : T, r: IReactionPublic) => void, 
   opts?: IReactionOptions<T, FireImmediately>): IReactionDisposer;

Defined in: mobx:

Type Parameters

Type Parameter	Default type
T	-
FireImmediately extends boolean	false

Parameters

Parameter	Type
expression	(r: IReactionPublic) => T
effect	(arg: T, prev: FireImmediately extends true ? T | undefined : T, r: IReactionPublic) => void
opts?	IReactionOptions<T, FireImmediately>

Returns

IReactionDisposer

See

https://mobx.js.org/README.html