Detailed explanation of three ways to import import in vue

In this, you can use three different ways to import a module or component:

Default import:

This method is used to import a module's default export (usually a component or an object). For example:

import MyComponent from './';

This will importThe default export in the file and name itMyComponent。

Named Import:

This method is used to import named exports in a module. You can use braces in import statements{}Specify the name to import. For example:

import { someExport, anotherExport } from './module';

This will be fromImport into the filesomeExportandanotherExport。

Import the Entire Module:

You can also import the entire module to access multiple exports in it when needed (If the import is invalid, the import is)For example:

import * as myModule from './myModule';

import from './myModule';

This will import the entireFiles, you can passAccess the export.

Case:

When importing a module and using its export, it is usually necessary to make sure that the export is already correctly defined in the module. Here are some examples that demonstrate how to access exports in different ways:

Suppose there is a module called:

// 

// Default exportexport default {
  message: "This is the default export",
};

// Named exportexport const someExport = "This is a name export";
export const anotherExport = "This is another named export";

Now let's import and access these exports in another file:

Default exported access:

import MyModule from './myModule';

(); // Output: This is the default export

Named exported access:

import { someExport, anotherExport } from './myModule';

(someExport);       // Output: This is a named export(anotherExport);    // Output: This is another named export

Import the entire module and access the exports there:

import * as myModule from './myModule';

(); // Output: This is the default export();      // Output: This is a named export();   // Output: This is another named export

If you want to use the vue application globally, you need to import it in ****

These three import methods can be selected according to your needs and project structure. Default imports are suitable for situations where a single default export is imported, named imports are suitable for situations where multiple named exports are imported, and importing the entire module is suitable for situations where multiple exports are required, and you want to organize them in one object.

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