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Javascript Typescript";“出口未定义”;不导出时出错_Javascript_Typescript_Electron_Commonjs - Fatal编程技术网

Javascript Typescript";“出口未定义”;不导出时出错

Javascript Typescript";“出口未定义”;不导出时出错,javascript,typescript,electron,commonjs,Javascript,Typescript,Electron,Commonjs,我正在使用typescript构建一个电子应用程序。我已将我的tsconfig设置如下: { "compilerOptions": { /* Basic Options */ "target": "es5", /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018'

我正在使用typescript构建一个电子应用程序。我已将我的
tsconfig
设置如下:

{
    "compilerOptions": {
        /* Basic Options */
        "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
        "module": "commonjs",                  /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */

        "outDir": "./build",                      /* Redirect output structure to the directory. */

        "strict": true,                           /* Enable all strict type-checking options. */

         "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */

        "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
    },
    "include": [
        "./src"
    ]
}
我必须提到,我没有使用webpack或browsify

因此,我现在必须键入脚本文件,一个负责创建主窗口,一个负责处理事件(基本上一个用于主线程,一个用于渲染器)。我在这两个地方都只使用进口,没有出口。问题是,在渲染器脚本(javascript形式)中,我在运行
tsc
Object.defineProperty(exports,“\uu esModule”,{value:true})后得到了这一行,这会在运行应用程序时导致“导出未定义”错误

我曾尝试按照其他帖子中的建议从
tsconfig
中删除模块属性,但没有效果。如果我删除javascript文件中的那行代码,一切都会正常工作。但是我不知道该怎么做才能阻止tsc添加那行代码,因为在另一个javascript文件中它没有出现。提前感谢您的帮助

下面是我的typescript文件及其编译的javascript等价物

app.ts

import {app,BrowserWindow,desktopCapturer, DesktopCapturerSource} from 'electron';
import * as path from 'path';

function createWindow(){
const mainWindow:BrowserWindow = new BrowserWindow({
    width:800,
    height:600
});

mainWindow.loadFile(path.join(__dirname,"../src/assets/index.html"));
mainWindow.webContents.openDevTools()

}
app.on('ready',createWindow);
app.js

"use strict";
var __importStar = (this && this.__importStar) || function (mod) {
    if (mod && mod.__esModule) return mod;
    var result = {};
    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
    result["default"] = mod;
    return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
var electron_1 = require("electron");
var path = __importStar(require("path"));
function createWindow() {
    var mainWindow = new electron_1.BrowserWindow({
        width: 800,
        height: 600
    });
    mainWindow.loadFile(path.join(__dirname, "../src/assets/index.html"));
    mainWindow.webContents.openDevTools();
}
electron_1.app.on('ready', createWindow);
1.ts

import { desktopCapturer, DesktopCapturerSource } from "electron";

function onLoad(){
    desktopCapturer.getSources({
        thumbnailSize: {
            width: 256,
            height: 256,
        },
        types: ["screen", "window"]
    }, (error: Error, srcs: DesktopCapturerSource[]) => {
        if (error)
            throw error;
        let p: HTMLElement | null = document.querySelector("#tag");
        for (let src of srcs)
            if (p){
                let temp = src.name + ' ';
                p.textContent += src.name;
            }
    })
}

document.addEventListener("DOMContentLoaded", onLoad);
renderer.js

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var electron_1 = require("electron");
function onLoad() {
    electron_1.desktopCapturer.getSources({
        thumbnailSize: {
            width: 256,
            height: 256,
        },
        types: ["screen", "window"]
    }, function (error, srcs) {
        if (error)
            throw error;
        var p = document.querySelector("#tag");
        for (var _i = 0, srcs_1 = srcs; _i < srcs_1.length; _i++) {
            var src = srcs_1[_i];
            if (p) {
                var temp = src.name + ' ';
                p.textContent += src.name;
            }
        }
    });
}
document.addEventListener("DOMContentLoaded", onLoad);
“严格使用”;
defineProperty(导出,“\uu esModule”{value:true});
var electron_1=要求(“电子”);
函数onLoad(){
electron_1.desktopCapturer.getSources({
缩略图大小:{
宽度:256,
身高:256,
},
类型:[“屏幕”、“窗口”]
},函数(错误,srcs){
如果(错误)
投掷误差;
var p=document.querySelector(“#标记”);
对于(var_i=0,srcs_1=srcs;_i
我不确定,但我认为这应该有帮助:

// TypeScript considers non-module files to be files without `export`s.
// https://stackoverflow.com/a/41975448/5051090
export {};

试着把它钉在模块的底部。

我想出来了!问题是编译目标。从
es5
切换到
es6
解决了这个问题