Question

尝试开始开发角度2应用程序。在YouTube上找到了一个视频并随之运行。它效果很好，但只适用于Chrome。当我在IE 11中运行相同的应用程序时，我收到以下错误：

Error: (SystemJS) Syntax error
SyntaxError: Syntax error
at Anonymous function (eval code:4:1)
at Anonymous function (eval code:1:31)
Evaluating http://localhost:52688/app/app.module.js
Evaluating http://localhost:52688/app/main.js
Error loading http://localhost:52688/app/main.js

所以我去谷歌寻找解决方案。我已经知道IE 11不支持es6，所以我需要将我的tsconfig.json中的目标框架从es6更改为es5。显然我的应用程序对此并不满意，它会返回各种错误：

"Build:Cannot find name 'Map'" and "Build:Cannot find name 'Set'".

再次，关闭谷歌。我了解到这两个对象现在在es5和es6之间完全不同，很多人提出了一些垫片。所以我在我的package.json中添加了一个垫片，恢复包，并在我的主页面中引用它。我再次尝试建设，但我没有成功。

我怀疑这些垫片是否真的有效，但我不确定如何让它们工作＆＃39;。谢谢你的帮助。这是所有相关代码。如果您需要更多，请告诉我。

的package.json

{"name": "angular2withvs2015",
"version": "1.0.0",
"dependencies": {
"@angular/common": "~2.1.1",
"@angular/compiler": "~2.1.1",
"@angular/core": "~2.1.1",
"@angular/forms": "~2.1.1",
"@angular/http": "~2.1.1",
"@angular/platform-browser": "~2.1.1",
"@angular/platform-browser-dynamic": "~2.1.1",
"@angular/router": "~3.1.1",
"@angular/upgrade": "~2.1.1",
"bootstrap": "3.3.7",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.8",
"rxjs": "5.4.3",
"systemjs": "0.19.39",
"zone.js": "^0.6.25",
"es6-shim": "0.35.3"},
"devDependencies": {
"@types/core-js": "^0.9.41",
"@types/node": "6.0.40",
"gulp": "3.9.1",
"gulp-tsc": "^1.2.5",
"gulp-typescript": "^3.1.2",
"rimraf": "^2.5.4",
"typescript": "^2.0.7"}}

tsconfig.json

{
  "compilerOptions": {
    "target": "es6",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "types": []
  },
  "exclude": [
    "node_modules"
  ]
}

app.component.ts

import { Component,OnInit } from '@angular/core';
@Component({
    selector: 'my-app',
    template: `<h1>Hello {{name}}</h1>`,
    providers:[GetDataService]
})
export class AppComponent {
    name = 'Angular 2 (From component)';
}

system.config.js

(function (global) {
var map = {
    'app': '/app',
    '@angular': '/node_modules/@angular',
    'angular2-in-memory-web-api': 'node_modules/angular2-in-memory-web-api',
    'rxjs': '/node_modules/rxjs'

},
    packages = {
        'app': { main: './main.js', defaultExtension: 'js' },
        'angular2-in-memory-web-api': { main: './index.js', defaultExtension: 'js' },
        'rxjs': { defaultExtension: 'js' }
    },
    ngPackageNames = [
        'common',
        'compiler',
        'core',
        'http',
        'platform-browser',
        'platform-browser-dynamic',
        'router',
        'forms'
    ];

function packUmd(pkgName) { packages['@angular/' + pkgName] = { main: '/bundles/' + pkgName + '.umd.min.js', defaultExtension: 'js' } }

ngPackageNames.forEach(packUmd);


var config = {
    map: map,
    packages: packages
};

System.config(config);})(this);

Default.aspx的

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="Angular2Demo10.Default" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">    
<script src="node_modules/es6-shim/es6-shim.js"></script>
<script src="node_modules/core-js/client/shim.js"></script>

<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="system.config.js"></script>
<script>
    System.import('app').then(null, console.error.bind(console));
</script>
</head>
<body>
    <h1>Hello World (Default.aspx)</h1>
    <my-app>Loading...</my-app>
</body></html>

Answer 1

将我的tsconfig.json更改为：

{"compilerOptions": {
"lib": [ "es5", "dom", "es6", "dom.iterable", "scripthost" ],
"noLib": false,
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": true,
"types": ["node"]},
 "exclude": [
"node_modules"
]

另外，请务必将这两个引用添加到index.html。

<script src="node_modules/es5-shim/es5-shim.js"></script>
<script src="node_modules/es6-shim/es6-shim.js"></script>

来源：https://groups.google.com/forum/#!topic/angular/rR4GTRMUNsw - 史蒂文卢克 Angular and Typescript: Can't find names --Jayayi Hu

Angular 2应用程序在Chrome中运行，但不在IE 11

1 个答案: