I think it's wrong.（我觉得文档是不是写错了）

[dear-lizhihua]

From: Vue Guide - Components #data Must Be a Function
What is the meaning of "The el option also requires a function value when used in a component instance, for exactly the same reason."?
"The el option also requires a function value when used in a component instance, for exactly the same reason."这句话是什么意思？和上下文完全不通顺。el也不会是一个函数。

From: Vuex - Mutations #Mutations Follow Vue's Reactivity Rules
What is the meaning of "Use Vue.set(obj, 'newProp', 123), or -"?(I don't know '-')
"Use Vue.set(obj, 'newProp', 123), or -"中的'-'是什么意思？

I think it's wrong.
我觉得文档是不是写错了。

[597574484]

结合最上边一行data Must Be a Function，
那么 这句话的翻译就是，“当被用在实例化组件中，el选项也需要函数类型的值，正是基于同样地原因(同data用function的原因)”。

[dear-lizhihua]

我一开始也是这么想的。但是看了下文档，el是字符串，而且这里和上下文完全没有关联。

[LinusBorg]

Thank your for your interest in this project.

However, your issue is a usage/support question, and the issue tracker is reserved exclusively for bug reports and feature requests.

We encourage you to ask it on the forum (has a chinese section), Stack Overflow or on gitter and are happy to help you out there.

[dear-lizhihua]

Thank you...
But You do not understand what I mean. This may be a problem with the documentation.
We have already discussed, el can not be a function value.

[LinusBorg]

Oh, you are right, sorry!

Thank you for bringing it up, it must be a left-over fragment from the old 1.0 docs.

[dear-lizhihua]

"Use Vue.set(obj, 'newProp', 123), or -"
I think ", or -" is also superfluous.
@LinusBorg

[LinusBorg]

it can be left out, but is fine, in general. it's connecting the two list points: "You can use Vue.set(), or - you can replace the object ..."

[dear-lizhihua]

Well, why not make it like this?

• Use Vue.set(obj, 'newProp', 123).
• Or replace that Object with a fresh one. For example, using the stage-2 object spread syntax we can write it like this:

[chrisvfritz]

@dear-lizhihua Thanks for reporting these! The issue with the core documentation is resolved now, so I'm closing this. To further discuss the remaining Vuex documentation issue you have, can you open up a new issue on the Vuex repo? Vuex and Vue Router host their own documentation.

[dear-lizhihua]

Oh, I'm sorry. Thank you!