Why vuex2.0 action function only support one argument?

[leaves4j]

actions: {
  actionB ({ dispatch, commit }, a, b) {

  }
}

The param b is undefined

[leaves4j]

I think actions are the handle of state exposed to user, we shouldn't limit how to user use those functions, I can understand the mutations support one param, it's a payload for state, but it is necessary to limit user to use actions with one param?

[lowesyang]

I agree with you. But i guess Vuex2.0 maybe encourage developers to define new functions in property 'methods' in vm instead of using actions directly to bind to the DOM. In this case, one payload and a couples of arguments are the same.

[ktsn]

Because variadic arguments restrict the extensibility of dispatch and commit. We can add options to their 3rd argument in the future (e.g. commit already has silent option the 3rd argument).

[superzw]

How stupid design,i must do more,more,more stupid things ,when migrate vuex from 1.0 to 2.0. omz!

[tamtm]

How stupid design,i must do more,more,more stupid things ,when migrate vuex from 1.0 to 2.0. omz!

Yes, vue is cool but vuex is so stupid