永久記錄getIn在IE10失敗

這是不可改變的記錄類定義永久記錄getIn在IE10失敗

import Immutable, {Record} from 'immutable'; 

const FEATURE_DEFAULTS = { 
    name: null, 
}; 

export class Feature extends Record(FEATURE_DEFAULTS) { 
}

一個實例初始化是這樣的：

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

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

在最現代的瀏覽器（Chrome瀏覽器，Safari瀏覽器等），它的工作原理。按預期打印出name字段中的值。

然而，在IE10，b.getIn(['name'])拋出此異常：Unable to get property 'hasOwnProperty' of undefined or null reference

我的項目的更多信息，

"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",

我也使用babel翻譯器ES6語法

它使用這些依賴

"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",

我該如何解決這個問題？

編輯：我覺得異常是從這裏拋出：
https://github.com/facebook/immutable-js/blob/38019326a8d006a45ef48d9c4644e23ea476d298/src/Record.js#L55

來源

2016-06-07 Anthony Kong

我找到通天的bug跟蹤解決方案https://phabricator.babeljs.io/T3041

基本步驟是：

NPM安裝babel-plugin-transform-class-properties
NPM安裝通天塔 - 插件 - 轉換 - ES2015-CLASSE

這些插件添加到.babelrc：

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

來源

2016-06-07 23:08:27

永久記錄getIn在IE10失敗

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