相关疑难解决方法(0)

我有一个TypeError问题:

function artist(name) {
    this.name = name;
    this.albums = new Array();

    this.addAlbum = function(albumName) {
        for (var i = 0; i < this.albums.length; i++) {
            if (this.albums[i].name == albumName) {
                return this.albums[i];
            }
        }

        var album = new album(albumName);
        this.albums.push(album);

        return album;
    }
}

function album(name) {
    this.name = name;
    this.songs = new Array();
    this.picture = null;

    this.addSong = function(songName, track) {
        var newSong = new songName(songName, track);
        this.songs.push(newSong);

        return newSong;
    }
}

给出以下错误:

TypeError: album is not a constructor …

我在ES6目标环境中运行以下打字稿代码,它说"汽车不是构造函数"

我已经按照链接尝试将目标环境更改为ES5.它工作正常.有人可以说明为什么它不适用于目标ES6.

这是我的TypeScript代码:

export class Cars {
    constructor(public len: number,public wid: number) { }
}

export function getSize(): Cars {
    return new Cars(20, 30);
};

函数getSize中的错误是"汽车不是构造函数".

顺便说一下,我试图用Systemjs加载所有文件.

顺便说一句,我在浏览器中收到错误........而不是在编译时......

这是上面打字稿的编译代码....

System.register([], function(exports_1, context_1) {
    "use strict";
    var __moduleName = context_1 && context_1.id;
    var Cars;
    function getSize() {
        return new Cars(20, 30);
    }
    exports_1("getSize", getSize);
    return {
        setters:[],
        execute: function() {
            class Cars {
                constructor(len, wid) {
                    this.len = len;
                    this.wid = wid;
                }
            }
            ;
            exports_1("Cars", Cars);
        }
    } …