2
package.json
{ "version": "1.0.0",
"name": "basic-app",
"devDependencies": { "typescript": "^2.4.1" },
"dependencies": {
"@angular/core": "2.4.5",
"@angular/platform-browser": "2.4.5",
"@angular/platform-browser-dynamic": "2.4.5",
"@angular/common": "2.4.5",
"@angular/compiler": "2.4.5",
"@angular/http": "2.4.5",
"rxjs": "5.0.1",
"zone.js": "^0.7.2",
"systemjs": "0.19.40",
"core-js": "^2.4.1"
}}
tsconfig.json
{ "compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"experimentalDecorators": true,
"emitDecoratorMetadata": false, // set to false
"lib": ["es2015", "dom"],
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true
}}
index.html
<!DOCTYPE html>
<html>
<head>
<script src="node_modules/core-js/client/shim.min.js"></script>
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="src/systemjs.config.js"></script>
<script>
System.import('main').catch(function(err) {
console.error(err);
});
</script>
</head>
<body>
<my-app>Loading</my-app>
</body>
</html>
该代码似乎工作正常,当我在浏览器中运行它;我没有包含反映metadata.js,也没有在tsconfig.json中包含emitDecoratorMetadata
属性;所以reflectmetadata.js和emitDecoratorMetadata
在angular2中是可选的?请让我知道为什么上面的代码仍然在浏览器中工作。任何帮助是极大的赞赏。角度是否需要reflectmetadata.js和emitDecoratorMetadata:true?
https://embed.plnkr.co/?show=preview&show=app%2Fapp.component.ts角样本代码不包括反映metadata.js
伟大的答案。没有意识到它正在使用_decorate()函数。以为它会使用Class.name或其他东西 – Ryan