我使用的是anugular-cli 1.0.0-beta.16,它有如下所示的polyfills.ts:
// This file includes polyfills needed by Angular 2 and is loaded before
// the app. You can add your own extra polyfills to this file.
import 'core-js/es6/symbol';
import 'core-js/es6/object';
import 'core-js/es6/function';
import 'core-js/es6/parse-int';
import 'core-js/es6/parse-float';
import 'core-js/es6/number';
import 'core-js/es6/math';
import 'core-js/es6/string';
import 'core-js/es6/date';
import 'core-js/es6/array';
import 'core-js/es6/regexp';
import 'core-js/es6/map';
import 'core-js/es6/set';
import 'core-js/es6/reflect';
import 'core-js/es7/reflect';
import 'zone.js/dist/zone';但是这个pollyfills文件不能在IE11上工作,它能在Chrome,火狐,EDGE上工作,我的main.ts看起来是这样的:
import "./polyfills.ts";
import {platformBrowserDynamic} from "@angular/platform-browser-dynamic";
import {enableProdMode} from "@angular/core";
import {environment} from "./environments/environment";
import {AppModule} from "./app/";
if (environment.production) {
enableProdMode();
}
platformBrowserDynamic().bootstrapModule(AppModule);在IE11上运行此命令会在胖箭头表达式错误时显示错误
SCRIPT1002: Syntax error对于此位置的minifiedjs:
function arrayUnion(arr1, arr2) {
return arr1
.concat(arr2.filter(v => arr1.indexOf(v) === -1));
}这是我的tsconfig.json的样子
{
"compilerOptions": {
"declaration": false,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": ["es6", "dom"],
"mapRoot": "./",
"module": "es6",
"moduleResolution": "node",
"outDir": "../dist/out-tsc",
"sourceMap": true,
"target": "es5",
"typeRoots": [
"../node_modules/@types"
]
}
}@Cleton这是我的tsconfig的样子
发布于 2016-12-01 22:40:48
您的目标可能是es6,它将箭头函数编译为箭头函数:
let fn = () => console.log("hey");编译为:
let fn = () => console.log("hey");但是如果你以es5为目标,它会编译成:
var fn = function () { return console.log("hey"); };似乎IE11 (或任何其他版本的explorer)的do not yet support arrow functions。
如果你想支持它,你必须以es5或更低版本为目标,因为箭头函数没有Pollyfil.
https://stackoverflow.com/questions/40912921
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