首先,我正在努力提出正确的问题.我觉得我错过或混淆了有关TypeScript编译器,新ES2015(ES6)模块语法和模块加载器的一些概念.
我正在尝试使用ES2015模块语法导入npm安装的jquery模块.打字稿应该转发给ES5.
打开index.html时出错.
system-polyfills.src.js:1276 Error: SyntaxError: Unexpected token <
Evaluating http://localhost:3000/jquery
Error loading http://localhost:3000/app/main.js
的index.html
<html>
<head>
<title>Bare TypeScript</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="styles.css">
<!-- 1. Load libraries -->
<script src="node_modules/es6-shim/es6-shim.min.js"></script>
<script src="node_modules/systemjs/dist/system-polyfills.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="node_modules/jquery/dist/jquery.js"></script>
<!-- 2. Configure SystemJS -->
<script>
System.config({
packages: {
app: {
format: 'register',
defaultExtension: 'js'
}
}
});
System.import('app/main')
.then(null, console.error.bind(console));
</script>
</head>
<!-- 3. Display the application -->
<body>
<div>Loading...</div>
</body>
</html>
>我不确定是否 SRC = “node_modules / jquery的/ DIST /的jquery.js” >< /脚本>有必要的.
>当注释console.log($)时,B导入如何工作正常
出来吗? jQuery导入也应该工作吗?
>也许将npm的commonjs模块与systemjs混合是问题?
main.ts
import * as $from 'jquery'
import B from './app.b'
console.log("Monkey");
let b = new B();
console.log($);
如何配置tsc以使用ES2015模块语法?
使用TypeScript 1.8.
tsconfig.json
{
"compilerOptions": {
"target": "es5",
"module": "system",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"removeComments": false,
"noImplicitAny": false
},
"exclude": [
"node_modules",
"typings/main",
"typings/main.d.ts"
]
}
的package.json
"dependencies": {
"es6-shim": "^0.35.0",
"jquery": "^2.2.2",
"systemjs": "0.19.25"
},
typings.json
{
"ambientDependencies": {
"es6-shim": "github:DefinitelyTyped/DefinitelyTyped/es6-shim/es6-shim.d.ts#7de6c3dd94feaeb21f20054b9f30d5dabc5efabd",
"jquery": "registry:dt/jquery#1.10.0+20160316155526"
}
}
最佳答案 您正在尝试将jQuery作为systemjs模块加载,但它是AMD.
此外,除非您的app.b上有默认导出,否则typescript编译器将抛出错误.您是否检查过是否出现编译错误?
这个Github对使用ES6导入语法加载jQuery有一些了解.