Convert exports and module. Exports

81534819 scenario Reproduction

a.js

export let test = function () {  console.log(‘1‘);}

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b.js

let a= require (‘./a‘);a.test();

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Runnode bThe following error occurs:

export default {^^^^^^SyntaxError: Unexpected token export

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Solution

a.jsChange to the following:

exports.test = function () {  console.log(‘1‘);}

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Root Cause

Node and browser support different module specifications.

Entries	Node	Browser
Module specification	Commonjs	Es6
Export	* modules.exports; Exports	Export; export default
Introduction	Require	Import; Require

1. about exports and module. Exports

• When a node executes a file, it generates an exports and module object for the file,
  The module has an exports attribute.
• Exports = module. Exports = {};

2. About export and export default

• Both export and export default can be used to export constants, functions, files, modules, etc.
• In a file or module, there can be multiple export and import, and export default has only one
• Export via export. Add {} during import, and export default is not required
• Export can directly export the variable expression, but export default cannot.

 

Convert exports and module. Exports