When introducing gio statistics files in Vue project, the error 'exports is not defined' is reported. How to solve it?

Vue project introduces gio statistics file error report "exports is not defined" solution

When introducing the gio-alip.js file in Vue 2.6 project, exports is not defined error, which is usually caused by incompatible module import methods. Vue uses ES6 module system by default, while require and exports are the features of CommonJS module system.

The root cause of the problem and solutions:

This error prompt indicates that your code tries to import and export modules using CommonJS's require and exports , which your environment (Vue project) does not support. There are mainly solutions:

1. Import using ES6 module: This is the recommended solution, directly change CommonJS's require to ES6's import :

   Put the original code:

    var gio = require("@/utils/gio-alip.js").default;
   console.log(gio);

   Modified to:

    import gio from "@/utils/gio-alip.js";
   console.log(gio);

2. Modify the gio-alip.js file: If the gio-alip.js file itself uses the CommonJS specification, you need to modify it to comply with the ES6 module specification. Change exports export default or export .

   For example, to use CommonJS-style gio-alip.js :

    // gio-alip.js (CommonJS)
   const gio = { /* content*/ };
   module.exports = gio;

   Modified to ES6 style:

    // gio-alip.js (ES6)
   const gio = { /* content*/ };
   export default gio; // or export const gio = {/* content*/};

3. Configuring Babel (not recommended): If none of the above methods can be solved, and you do need to keep CommonJS's gio-alip.js file, you can try adding @babel/plugin-transform-modules-commonjs plugin in the Babel configuration file ( .babelrc or babel.config.js ). But this is usually not a best practice because it increases the complexity of the project and ES6 module import is a more modern and recommended way. Configuration example:

    {
     "plugins": ["@babel/plugin-transform-modules-commonjs"]
   }

Summarize:

Priority is given to methods 1 and 2, directly use the ES6 module import method, and ensure that the gio-alip.js file is also exported using the ES6 module. Babel is considered for compatibility only if it is really impossible to modify gio-alip.js , but this is not recommended because it will reduce the readability and maintenance of the code. Make sure your gio-alip.js file content is correct and compatible with your project environment.

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