Ember迭代：何时使用#each用户，#each控制器中的用户，#each模型中的用户等 [英] Ember iterations: when to use #each User, #each user in controller, #each user in model, etc

问题描述

我很困惑我应该如何迭代对象数组，何时使用不同的可能性。

I'm confused on how I'm supposed to iterate through arrays of objects and when to use the different possibilities.

到目前为止，我遇到了：

So far I've come across:

{{#each user in controller}}
{{#each user in model}}
{{#each user in users}}
{{#each User}}

我甚至把他们中的一些改了一些，看看我能不能打破它;例如

And I've even switched some of them up a bit just to see if I could break it; for example both

{{#each user in controller}}

和

{{#each user in model}}

成功输出相同的代码。我希望有人知道什么时候使用每个人的简单解释，以及它们之间的区别。谢谢！

output the same code successfully. I was hoping someone knew a simple explanation on when to use each one and what the differences between them are. Thanks!

推荐答案

以下使用 {{＃each}} 帮助器是等效的：

The following uses of the {{#each}} helper are equivalent:

{{#each user in controller}}
{{#each controller}}
{{#each user in model}}
{{#each model}}
{{#each user in content}}
{{#each content}}
// and a couple of other possible combination, depending on your setup

由于这个 PR ，你也可以简单地使用 {{＃each}} 。

And since this PR you can also use simply {{#each}}.

主要区别在于如何访问您正在循环的属性和项目本身。

The main difference though is how you access the properties and the items itself you are looping over.

使用 user 作为访问者的示例：

Example using user as the accessor:

{{#each user in model}}
  {{user.name}}
{{/each}}

使用这个的示例：

{{#each model}}
  {{this.name}}
{{/each}}

直接访问项目属性的示例：

Example accessing the item properties directly:

 {{#each model}}
   {{name}}
 {{/each}}

希望这能使事情更清楚。

Hope this makes things more clear.

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