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Question: What is the role of export default in Vue? Detailed description: export default defines the default export of the component. When importing, components are automatically imported. Simplify the import process, improve clarity and prevent conflicts. Commonly used for exporting individual components, using both named and default exports, and registering global components.
The role of export default
in Vue
In Vue.js, ## The #export default syntax is used to define the default export of a component. It tells the Vue component system that this component is the default export of the module and will be automatically imported when imported from the module.
How to use export default
export default in a Vue component, add at the end of the component definition The following line:
<code class="js">export default { // 组件选项 }</code>
Benefits
There are several benefits to usingexport default:
export default
Commonly used in the following situations:
Syntax specifies named exports for other components.
Global component registration:
export default:
<code class="js">// MyComponent.vue export default { data() { return { message: "Hello World!" } }, template: ` <div>{{ message }}</div> ` }</code>
The component can then be imported in another component :
<code class="js">// App.vue import MyComponent from "./MyComponent.vue"; export default { components: { MyComponent } }</code>
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