对象属性中的&符号 [英] Ampersand in object's properties

问题描述

我正在编写一个 JS 脚本，该脚本的某些属性中带有 &'s 的对象，例如

I'm writing a JS script that has an object with &'s in some of its properties, e.g.

var topicObj = {
"Client & Peripherals": ["USB", "Printer", "Copy/Paste"],
"Install & Upgrade": ["Tenant Upgrade", "Agent upgrade"]
}

问题是，当我尝试迭代其值之一时，例如

The thing is, when I attempt to iterate over one of its values, e.g.

selMTopic = "Client & Peripherals"
for (t in topicObj[selMTopic]) {
  addTopic(topicsDD,topicObj[selMTopic][t]);
}

它失败了，它无法计算t，我猜它不喜欢在属性中包含 & 和类似字符.

it fails, it can't compute t, I guess it doesn't like having &'s, and similar characters, in the property.

我一直试图找出如何在没有运气的情况下在属性中拥有和使用 &'s;我试过用 encodeURIComponent 对字符串进行编码，但也没有运气.

I've been trying to find out how to have and use &'s in properties with no luck; I've tried encoding the string with encodeURIComponent but no luck either.

如果可能的话，我知道该怎么做吗?我需要那些&'s在那里.我认为它使用两个数组而不是对象，一个具有对象的属性，另一个具有对象的值数组；但我真的宁愿坚持使用一个对象，因为我可能需要添加更多深度级别"；未来.

Any idea how can I do it, if possible? I need to have those &'s there. I'm thinking it using two arrays instead of the object, one with the object's properties, and the other each of the object's value arrays; but I would really rather stick with an object, as I may need to add more "levels of depth" in the future.

推荐答案

使用of(对于数组)而不是in(对于属性)

use of (for array) instead of in (for properties)

var topicObj =
  { "Client & Peripherals" : ["USB", "Printer", "Copy/Paste"]
  , "Install & Upgrade"    : ["Tenant Upgrade", "Agent upgrade"]
  }
for (let selMTopic in topicObj)
  {
  for (let t of topicObj[selMTopic])
    {
    console.log( selMTopic,'->', t )
    // addTopic(topicsDD, t );
    }
  }

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