Using Vue3 to invoke a method in one component from another component

Question

Using Vue3 to invoke a method in one component from another component

I'm attempting to call a function from one component to another, specifically from within the setup function. I came across a helpful article on VueMastery which suggests using the following approach:

 methods: {
    reset () {
      this.$refs.counter.reset()
    },
    terminate () {
      this.$refs.counter.terminate()
    }
  }

Unfortunately, I am unable to access these methods within the setup function, nor can I utilize this.$refs. Is there a way to achieve the same functionality within setup or access these methods?

Attempting to access these methods within setup results in them being undefined, and accessing setup data from within these functions or using $refs is also not possible.

While using $refs is a simple way to call functions from another component, I am struggling to find a straightforward method to accomplish this using Vue 3's composition API. Am I overlooking something?

javascript vue.js vuejs3

Answer 1

Answer №1

Success! I finally cracked the code. Check out this resource for more details.

Here's the solution:

<script>
 export default {
  setup(props) {
   const counter = ref(null);
   //now I have access to counter.value.reset after it's mounted
   counter.value.reset(); //doesn't work! it's null here
   onMounted(() => {
    counter.value.reset(); //works here
   })
   //don't forget to return counter in return

It seems like there's a straightforward way to handle this in setup, but it comes with a catch:

You can't simply call it immediately because setup occurs before mounted. Check out this documentation for more insights.

I'm triggering it based on a specific event - like when someone selects something from a dropdown. By monitoring the v-model, I can easily call it without any issues. Thanks for the help and suggestions. I'm sharing this answer here in case anyone else faces a similar challenge.

Answer 2

Success! I finally cracked the code. Check out this resource for more details.

Here's the solution:

<script>
 export default {
  setup(props) {
   const counter = ref(null);
   //now I have access to counter.value.reset after it's mounted
   counter.value.reset(); //doesn't work! it's null here
   onMounted(() => {
    counter.value.reset(); //works here
   })
   //don't forget to return counter in return

It seems like there's a straightforward way to handle this in setup, but it comes with a catch:

You can't simply call it immediately because setup occurs before mounted. Check out this documentation for more insights.

I'm triggering it based on a specific event - like when someone selects something from a dropdown. By monitoring the v-model, I can easily call it without any issues. Thanks for the help and suggestions. I'm sharing this answer here in case anyone else faces a similar challenge.

Using Vue3 to invoke a method in one component from another component

Answer №1

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