不可变记录getIn在ie10中失败

Question

这里是不可变记录class定义

import Immutable, {Record} from 'immutable';

const FEATURE_DEFAULTS = {
  name: null,
};

export class Feature extends Record(FEATURE_DEFAULTS) { 
}

一个实例是这样初始化的：

const featureName = 'a value';
const b = new Feature({ name: featureName });

console.log(b.getIn(['name']));

在大多数现代浏览器（chrome、safari 等）中，它都有效。它按预期打印出 name 字段中的值。

但是在ie10中，b.getIn(['name'])抛出这个异常：Unable to get property 'hasOwnProperty' of undefined or null reference

关于我的项目的更多信息，它使用这些依赖项

"immutable": "^3.8.1",
"react": "^15.1.0",
"react-chartist": "^0.10.1",
"react-dom": "^15.1.0",
"react-intl": "2.1.2",
"react-redux": "^4.4.5",
"react-router": "^2.4.1",
"redux": "^3.5.2",
"redux-thunk": "^2.1.0",
"reselect": "^2.5.1",

我也在用babel翻译es6语法

"babel-core": "^6.9.1",
"babel-eslint": "^6.0.4",
"babel-loader": "^6.2.4",
"babel-polyfill": "^6.9.1",
"babel-preset-es2015": "^6.9.0",
"babel-preset-react": "^6.5.0",
"babel-preset-stage-0": "^6.5.0",
"babel-register": "^6.9.0",
"babel-runtime": "^6.9.2",

我该如何解决这个问题？

编辑：我认为异常是从这里抛出的：
https://github.com/facebook/immutable-js/blob/38019326a8d006a45ef48d9c4644e23ea476d298/src/Record.js#L55

Answer 1

我从 babel 的错误跟踪器中找到了解决方案 https://phabricator.babeljs.io/T3041

基本上步骤是：

npm 安装 babel-plugin-transform-class-properties
npm 安装 babel-plugin-transform-es2015-classe

将这些插件添加到 .babelrc:

  "plugins": [
       "transform-class-properties",
       ['transform-es2015-classes', {loose: true}]
     ]

不可变记录getIn在ie10中失败

immutable record getIn fails in ie10

internet-explorer-10

babeljs

immutable.js