Vue Composition Api Refs

Posted on  by admin
You've seen in the last tip "Use old instance properties in Composition API in Vue.js 3" how to access instance properties in the new syntax.

However, our beloved this.$refs wasn't included in the setup context object as you realized if you read the tip. So, how can you work with template refs in Composition API? It might be more simple than you think! The thing is, Vue.js unifies the concept of refs, meaning that you just need to use the ref() function you already know for declaring reactive state variables in order to declare a template ref as well.

じゃあ結局のところ、refとreactiveをどう使い分けるのか

Only keep in mind that the ref name must be the same as the variable's one. Let me illustrate it.

For the template:. I've set titleRef on the

tag. That's all in the template level. Now in the setup function, you need to declare a ref with the same titleRef name, initialized to null for instance:.

You access the ref value just like any other reactive ref, by accessing the .value property. If you do so as shown in the example you should see in the console the result titleRef .

Don't believe me? Check it out with your own eyes this CodeSandbox! That's it for today's tip! Modified4 months ago. there is a component with a ref like this:. and inside the component there is a function like this:.

そういえばrefとreactiveの型推論ってちゃんと効いてる?

how do i get accsess to helloWorld function from the parent component? 199199 bronze badges. Assuming your child component is also using