How to use components in vue

There are two main ways to use components in Vue: local components and global components. Local components are registered within the component and are referenced through the <component> tag. Global components are registered with the Vue instance and are referenced by the component name in any component. This provides advantages such as reusability, modularity, extensibility, and independence.

Using components in Vue

How to use components?

There are two main ways to use components in Vue:

1. Local components:

• Within the component definition Register local components.
• Use the <component> tag in the component template to reference the local component.

2. Global components:

• Register global components in the Vue instance.
• Reference a global component using the component name in any component template.

Specific usage:

1. Local component:

<template>
  <div>
    <component :is="componentName"></component>
  </div>
</template>

<script>
export default {
  components: {
    // 组件名称和组件定义
    componentName: {
      template: '<p>局部组件</p>'
    }
  }
}
</script>

2. Global component:

import MyComponent from './MyComponent.vue';

export default {
  beforeCreate() {
    this.$options.components.MyComponent = MyComponent;
  }
}

Referenced in other components:

<MyComponent></MyComponent>

Advantages:

The advantages of using components include:

• Reusability: Components can be reused across multiple views and applications.
• Modularization: Components break down the code into smaller units, making the code easier to manage and maintain.
• Extensibility: Components can be nested to create more complex user interfaces.
• Independence: Components can be developed and tested independently to improve development efficiency.

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