xstate 中 { actions: "" } 和 { entry: "" } 之间的区别？

Question

在我看来，您可以通过以下方式之一启动操作：

明确

{
  ...
  states: {
    foo: {
      on: {
        BAR: {
          actions: "performSomeAction",   
          target: "bar",
        },
      },
    },
    bar: {},
  },
  ...
}

隐式地与 "entry"

{
  ...
  states: {
    foo: {
      on: {
        BAR: "bar",
      }
    },
    bar: {
      entry: "performSomeAction",
    },
  },
  ...
}

在什么情况下你会选择其中之一？

Answer 1

David Kourshid（xstate 的创建者）answered Spectrum 上的这个：

They mean different things.

• Transition actions mean "execute this action only on this transition"
• Entry/exit actions mean "execute this action on any transition that enters/exits this state"