SyntaxError:用于test.es5.js的意外令牌'const' [英] SyntaxError: Unexpected token 'const' for testing.es5.js

问题描述

我已切换到 Angular4.0.0-rc.1 ， 看来ES5测试包包含ES2015代码.

I've switched to Angular4.0.0-rc.1 and it looks like ES5 testing bundles contain ES2015 code.

我收到此错误:

PhantomJS 2.1.1 (Mac OS X 0.0.0) ERROR
  SyntaxError: Unexpected token 'const'
    at webpack:///~/@angular/core/@angular/core/testing.es5.js:10:0 <- src/test.ts:16345

还在Angular仓库中发现了相关问题.

Also found related issue on Angular repo.

推荐答案

我刚刚创建了一个基本的Angular项目，并且在PhantomJS集成中存在相同(或相似)的问题.

I just created a basic Angular project and had the same (or similar) issue with PhantomJS integration.

PhantomJS 2.1.1 (Mac OS X 0.0.0) ERROR
  SyntaxError: Unexpected token 'const'
  at webpack:///src/app/app.component.ts:1:0 <- src/test.ts:63184

我们的团队成功了，这就是我们在文档中所扔的东西:

PhantomJS是可用于自动化测试的无头(又称无GUI)浏览器. 当前，PhantomJS有一个局限性，因为它仅支持

Our team got it to work and here's what we tossed in our documentation:

PhantomJS is a headless (aka, no GUI) browser that can be used for automated testing. Currently, PhantomJS has a limitation in that it only supports the ES5 standard.

1. npm install -g phantomjs-prebuilt
2. npm install --save-dev karma-phantomjs-launcher
   • 在karma.conf.js中

1. npm install -g phantomjs-prebuilt
2. npm install --save-dev karma-phantomjs-launcher
   • in karma.conf.js

1. 在插件部分添加require('karma-phantomjs-launcher')
2. 将PhantomJS添加到浏览器

1. add require('karma-phantomjs-launcher') to the plugins section
2. add PhantomJS to the browsers

src/polyfill.ts中的

• in src/polyfill.ts

1. 添加import 'intl'; (在底部取消注释)
2. 在常绿需求部分添加import "core-js/client/shim";

1. add import 'intl'; (uncomment at the bottom)
2. add import "core-js/client/shim"; to the Evergreen requirements section

• 将目标设置为es5.

假设一切顺利，测试应该可以进行.

Assuming all goes well, testing should work.

有关如何触发测试运行的一些示例:

Some examples on how to trigger a test run:

• ng test --browsers PhantomJS --singleRun true
• ./node_modules/karma/bin/karma start ./karma.conf.js --browsers PhantomJS --singleRun true

• ng test --browsers PhantomJS --singleRun true
• ./node_modules/karma/bin/karma start ./karma.conf.js --browsers PhantomJS --singleRun true

这篇关于SyntaxError:用于test.es5.js的意外令牌'const'的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！