迭代字典的反应/功能方式是什么？ [英] What is the reactive/functional way to iterate over a dictionary?

问题描述

我找不到有关如何迭代字典的信息。 

I could not find an information on how to iterate over a dictionary. 

通常情况下我会迭代：

for (var key in dictionary) {
    console.log("key: " + key ", value: " + dictionary[key]);
}

目前我有一个功能

function fromDictionary(dictionary) {
    return rx.Observable.fromArray(Object.keys(dictionary))
      .map(function(key){			
        return {key:key, value:dictionary[key]};		
      });
}

然后用作：

fromDictionary(dictionary)
    .subscribe(function(keyValue){
        console.log("key: " + key + ", value: " + value);
    });

有没有更好的方法来迭代字典？ 

Is there a better way to iterate over a dictionary? 

推荐答案

这样做的目的是什么？ 字典不是异步数据结构，因此将它们转换为"反应"数据结构。这样的模型只会使它们更难以使用。

What is the purpose of doing this? Dictionaries aren't asynchronous data structures, so converting them into a "reactive" model in this way is just making them more difficult to work with.

为什么不使用本机JS迭代技术，如 for 循环？

Why not just use native JS iteration techniques like a for loop?

- 戴夫

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