将typescript转换为javascript

我需要这段代码在Javascript中

我不擅长语言打字

这是使用nativescript在手机中播放音乐和录制音频的代码

不要思考GitHub，快速给出答案

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您可以使用typescript实现从typescript到javascript的即时转换。 这是网址

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或者您可以在计算机中安装typescript编译器并运行tsc。

如果您使用Webpack或任何Angular（2+）种子项目，甚至Angular cli，则所有typescript代码都将“编译”到ECMAScript，您可以选择版本（从5到7）

只需打开tsconfig.json。target将提供您需要的ECMAScript的具体版本

 "compilerOptions": {
"outDir": "./dist/out-tsc",
"baseUrl": "src",
"sourceMap": true,
"declaration": false,
"moduleResolution": "node",
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"target": "es5",
"typeRoots": [
  "node_modules/@types"
]

---

运行

build

并从outDir目录获取JavaScript文件。

您可以使用TypeScript编译器（tsc）来完成此操作。对于您的代码段，输出如下：

"use strict";
exports.__esModule = true;
var nativescript_audio_1 = require("nativescript-audio");
var YourClass = (function () {
    function YourClass() {
        var _this = this;
        this._player = new nativescript_audio_1.TNSPlayer();
        this._player.initFromFile({
            audioFile: '~/audio/song.mp3',
            loop: false,
            completeCallback: this._trackComplete.bind(this),
            errorCallback: this._trackError.bind(this)
        }).then(function () {
            _this._player.getAudioTrackDuration().then(function (duration) {
                // iOS: duration is in seconds
                // Android: duration is in milliseconds
                console.log("song duration:", duration);
            });
        });
    }
    YourClass.prototype.togglePlay = function () {
        if (this._player.isAudioPlaying()) {
            this._player.pause();
        }
        else {
            this._player.play();
        }
    };
    YourClass.prototype._trackComplete = function (args) {
        console.log('reference back to player:', args.player);
        // iOS only: flag indicating if completed succesfully
        console.log('whether song play completed successfully:', args.flag);
    };
    YourClass.prototype._trackError = function (args) {
        console.log('reference back to player:', args.player);
        console.log('the error:', args.error);
        // Android only: extra detail on error
        console.log('extra info on the error:', args.extra);
    };
    return YourClass;
}());
exports.YourClass = YourClass;

---

我当然在问之前搜索过。表示输出不工作，因为nativescript音频本身是一个库。此转换不会下载库，它只转换库中的代码。我不想要我使用的TypeScript语言。我想代码到JavaScript编程语言是直接的

"use strict";
exports.__esModule = true;
var nativescript_audio_1 = require("nativescript-audio");
var YourClass = (function () {
    function YourClass() {
        var _this = this;
        this._player = new nativescript_audio_1.TNSPlayer();
        this._player.initFromFile({
            audioFile: '~/audio/song.mp3',
            loop: false,
            completeCallback: this._trackComplete.bind(this),
            errorCallback: this._trackError.bind(this)
        }).then(function () {
            _this._player.getAudioTrackDuration().then(function (duration) {
                // iOS: duration is in seconds
                // Android: duration is in milliseconds
                console.log("song duration:", duration);
            });
        });
    }
    YourClass.prototype.togglePlay = function () {
        if (this._player.isAudioPlaying()) {
            this._player.pause();
        }
        else {
            this._player.play();
        }
    };
    YourClass.prototype._trackComplete = function (args) {
        console.log('reference back to player:', args.player);
        // iOS only: flag indicating if completed succesfully
        console.log('whether song play completed successfully:', args.flag);
    };
    YourClass.prototype._trackError = function (args) {
        console.log('reference back to player:', args.player);
        console.log('the error:', args.error);
        // Android only: extra detail on error
        console.log('extra info on the error:', args.extra);
    };
    return YourClass;
}());
exports.YourClass = YourClass;