TypeError: 'MyClass.MyFunction is not a function' error message in ES6 / Node 4

Question

我遇到了一个错误，我可以在 node.js 4.0 应用程序中使用以下代码复制该错误：

"use strict";

var Immutable = require("immutable");

class AspectType {
    constructor(htmlLabel) { this.hhtmlLabel = htmlLabel; }
    htmlLabel() { return this.hhtmlLabel; }
}

var AspectTypes = Immutable.OrderedMap()
    .set("C",new AspectType("xxx"))
    .set("D",new AspectType("yyy"))
    .set("E",new AspectType("zzz"));


for (var retr in AspectTypes.values()) {
    console.log(retr.htmlLabel());
}

我收到以下错误消息，为什么？

TypeError: retr.htmlLabel is not a function
    at Object.<anonymous> (...\testt.js:17:22)

Answer 1

噗……

for (var retr of AspectTypes.values()) {

不是

for (var retr in AspectTypes.values()) {

TypeError: 'MyClass.MyFunction is not a function' error message in ES6 / Node 4

TypeError: 'MyClass.MyFunction is not a function' error message in ES6 / Node 4

javascript

node.js

ecmascript-6

immutable.js