Can an event be passed from one Vue.js component to another without relying on a global EventBus?

Question

Can an event be passed from one Vue.js component to another without relying on a global EventBus?

I have two independent components that are not directly related to each other. However, I want them to be able to communicate so that when an event is triggered in one component, the other component can respond accordingly.

For example, let's consider a component named "reset-component" which emits an event called "reset".

<reset-component @reset="actionReset" />

Additionally, we have a "grid-component" that needs to listen for the "reset" event emitted by the "reset-component" and take specific actions in response.

<grid-component />

What are my options for achieving this functionality? The only approach I've thought of involves emitting a global event using an EventBus and then having the grid-component listen for that global event. But is this considered a best practice? Or could it actually be seen as an anti-pattern?

// Reset component
EventBus.$emit('reset')

// Grid component
created()
{
    EventBus.$on('reset', () => {
        doSomething()
    })
}

javascript vue.js vue-component

Answer 1

Answer №1

To achieve this, you can utilize the power of Subject. For a detailed guide on how to do this, check out the following resource: Vue.js + RxJS - Communicating Between Components with Observable & Subject

Answer 2

To achieve this, you can utilize the power of Subject. For a detailed guide on how to do this, check out the following resource: Vue.js + RxJS - Communicating Between Components with Observable & Subject

Answer 3

Answer №2

There are actually several options available to you. One of the possibilities, as you have already pointed out, is using a global event bus.

In your main file (let's say main.js), you could implement it like this:

Vue.prototype.$bus = new Vue()

Once you have done this, you will be able to access this.$bus in all of your components. For example:

methods: {
  dispatchReset () {
    this.$bus.$emit('reset')
  }
}

Other components can then listen for this event through:

created () {
  this.$bus.$on('reset', this.doReset)
}

Another suggestion that has been brought up is Vuex, as mentioned by @Armen Armus in the comments. With Vuex, you can manage a global state for your application and trigger events from any component. However, if you only need a few events like a reset, adding Vuex may not be necessary.

Alternatively, you could also store a "state" in your root Vue instance/component. But keep in mind, this approach would require passing props down and triggering events up from each view/component, which could become cumbersome.

Answer 4

There are actually several options available to you. One of the possibilities, as you have already pointed out, is using a global event bus.

In your main file (let's say main.js), you could implement it like this:

Vue.prototype.$bus = new Vue()

Once you have done this, you will be able to access this.$bus in all of your components. For example:

methods: {
  dispatchReset () {
    this.$bus.$emit('reset')
  }
}

Other components can then listen for this event through:

created () {
  this.$bus.$on('reset', this.doReset)
}

Another suggestion that has been brought up is Vuex, as mentioned by @Armen Armus in the comments. With Vuex, you can manage a global state for your application and trigger events from any component. However, if you only need a few events like a reset, adding Vuex may not be necessary.

Alternatively, you could also store a "state" in your root Vue instance/component. But keep in mind, this approach would require passing props down and triggering events up from each view/component, which could become cumbersome.

Answer 5

Answer №3

When it becomes challenging to pass props to child components and raise events to parent components due to distance or app complexity, VueX comes in handy: Check out more about VueX here

Answer 6

When it becomes challenging to pass props to child components and raise events to parent components due to distance or app complexity, VueX comes in handy: Check out more about VueX here

Answer 7

Answer №4

Absolutely, you have the ability to utilize vm.$on and vm.$emit within components.

Within your reset-component, trigger the event from any method or element.

this.$emit('reset')

Subsequently, you can listen for it as follows:

<reset-component @reset="actionReset" />

Answer 8

Absolutely, you have the ability to utilize vm.$on and vm.$emit within components.

Within your reset-component, trigger the event from any method or element.

this.$emit('reset')

Subsequently, you can listen for it as follows:

<reset-component @reset="actionReset" />

Answer 9

Answer №5

In addition, you have the option to simply include hooks in the instances:

ResetComponent.$on("reset", performAction)

vm.$on

However, I presume this may establish a connection.

Answer 10

In addition, you have the option to simply include hooks in the instances:

ResetComponent.$on("reset", performAction)

vm.$on

However, I presume this may establish a connection.

Can an event be passed from one Vue.js component to another without relying on a global EventBus?

Answer №1

Answer №2

Answer №3

Answer №4

Answer №5

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