语法错误：无法在模块外部使用import语句

Question

当我尝试在VSC中运行调试器时，我不断收到此错误消息。谁能帮忙吗？ 这是屏幕截图：

我是编程和课程学习的新手，请尽可能保持基本解释。

这是JS文件的代码。我已经使用Yo Code和NPM生成了基本的Visual Studio代码扩展。

    // The module 'vscode' contains the VS Code extensibility API
// Import the module and reference it with the alias vscode in your code below
import { commands, window } from 'vscode';

// this method is called when your extension is activated
// your extension is activated the very first time the command is executed

/**
 * @param {vscode.ExtensionContext} context
 */
function activate(context) {

// Use the console to output diagnostic information (console.log) and errors (console.error)
    // This line of code will only be executed once when your extension is 
    activated
    console.log('Congratulations, your extension "content-helper" is now 
    active!');

    // The command has been defined in the package.json file
    // Now provide the implementation of the command with  registerCommand
    // The commandId parameter must match the command field in package.json
    let disposable = commands.registerCommand('extension.helloWorld', function () {
        // The code you place here will be executed every time your command is executed

        // Display a message box to the user
        window.showInformationMessage('Hello World!');
    });

    context.subscriptions.push(disposable);
}
const _activate = activate;
export { _activate as activate };

// this method is called when your extension is deactivated
function deactivate() {}

export default {
    activate,
    deactivate
}

Answer 1

VS代码扩展在不固有支持模块的节点环境中运行（因此，没有import和export）。

yo code仅在创建TypeScript扩展名时使用import。对于js扩展名，yo code改用require：

const vscode = require('vscode');

要在VS Code扩展中使用import，必须使用TypeScript或webpack之类的工具将代码编译为目标Node。