找不到名称__values

时间:2017-12-12 21:02:12

标签: node.js typescript webpack

我试图通过浏览器运行使用ascript迭代器的typescript(使用版本2.6)内置的示例。

`

function* countAppleSales () {
  var saleList = [3, 7, 5];
  for (var i = 0; i < saleList.length; i++) {
    yield saleList[i];
  }
}
for(let val of countAppleSales())
    console.log(val);

async function* asyncRandomNumbers() {
    // This is a web service that returns a random number
    const url = 'https://www.random.org/decimal-fractions/?num=1&dec=10&col=1&format=plain&rnd=new';

    while (true) {
      const response = await fetch(url);
      const text = await response.text();
      yield Number(text);
    }
  }

  async function example() {
    for await (const number of asyncRandomNumbers()) {
      console.log(number);
      if (number > 0.95) break;
    }
  }

  example();

  console.log('we are after await')

;`

上面的代码在浏览器中正常运行但是收到错误无法在console.log中找到名称__values。

下面是我使用的类型脚本配置文件:

   {
  "compilerOptions": {
      "module": "es2015",
      "types": [
        "node"
       ],
     // typeRoots option has been previously configured
     "typeRoots": [
        // add path to @types
        "node_modules/@types"
     ],
      "target": "es6",
      "noImplicitAny": false,
      "downlevelIteration": false,
      "sourceMap": true,
      "moduleResolution": "node",
      "watch": true,
      "experimentalDecorators": true,
      "emitDecoratorMetadata": true,
      //"noEmitHelpers": true,
      "skipDefaultLibCheck": true,
      "strictNullChecks": false,
      "outDir": "tmp",
      //"lib":["es2017","es2015","es2016","es2015.generator","esnext","dom","esnext.asynciterable"]
      "lib": [ "es2017","dom","es2015.generator","es2015","es2015.iterable","esnext.asynciterable","esnext"]
  },
  "allowSyntheticDefaultImports":true,
  "baseUrl": ".",

  "paths": {
    "lodash/*": [
      "node_modules/@types/lodash-es/*"
    ]},

    "awesomeTypescriptLoaderOptions": {
      "useBabel": true,
      "useCache": true
    },
  "include": [
    "src",
    "test"
],
"exclude": [
    "node_modules",
    "typings"
]
}

请有人帮忙解决这个问题

1 个答案:

答案 0 :(得分:1)

此问题现已解决,问题是由于在webpack配置文件中复制粘贴打字稿加载程序规则配置两次。 webpack错误需要更加具体。