Can you explain the distinction between export/import and provide/inject in Vue3?

Can you explain the difference between export/import and provide/inject in Vue3?

// parent
const data = provide('data', ref(0))

// child
const data = inject('data')
// parent
export const data = ref(0)

// child
import { data } from './parent'

I have tested both methods and noticed the performance results are similar. I am curious to understand the distinction between export/import and provide/inject, and which one is more suitable for use in a production project.

Answer №1

Vue 3 introduces the use of "provide" and "inject" as design patterns for passing data from parent components to child components. When a parent component uses the "provide" method, it can pass data down to its children components. On the other hand, the "inject" method allows a child component to receive data from its parent.

Conversely, in JavaScript, "export" and "import" are utilized for organizing code into modules. "Export" enables values and functions defined within a module to be accessed by other modules that import it, while "import" is used to bring in exported values and functions from another module.

To summarize, "provide" and "inject" facilitate component communication within Vue apps, while "export" and "import" deal with modularizing and sharing code across different files.

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