[Bug Report]The table component column render function can not be rendered if it returns a string directly

[Hishengs]

Environment

vue^2.5.14 vue-template-compiler^2.5.14 chrome@64.0.3282.186 node@8.2.1 win7 iview^2.11.0 webpack^3.8.1

Reproduction link

https://github.com/Hishengs/iview-bug-report

Steps to reproduce

1. clone repo
2. npm install & npm run dev

aim file：https://github.com/Hishengs/iview-bug-report/blob/master/App.vue

What is expected?

can render primitive values

What is actually happening?

can not render

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I guessis vue@2.5.14 's changs for functional component cause，but I can not reappear

[iview-bot]

Translation of this issue:

Environment

Vue^2.5.14 vue-template-compiler^2.5.14 chrome@64.0.3282.186 node@8.2.1 win7 iview^2.11.0 webpack^3.8.1

Reproduction link

https://github.com/Hishengs/iview-bug-report

Steps to reproduce

1. clone warehouse
2. NPM install & NPM run dev
   Specific document: https://github.com/Hishengs/iview-bug-report/blob/master/App.vue

What is expected?

The original value can be rendered correctly

What is actually happening?

Unable to render

The guess is that the vue@2.5.14 version has led to the update of functional component, but I can't make it back.

[iamzhangjinpeng]

I met the same problem.

[icarusion]

have to set a node after using Vue.js 2.5.14

[Hishengs]

@icarusion is it vue's bug or just intended, can not return primitive values in the new version(^2.5.14)? is that means I have to change all the places I return primitive values in the table column render function if I use vue^2.5.14? thx

[icarusion]

The correct way to use the render function is to use h.

[Hishengs]

@icarusion I know that's the correct way, but your answer is not for my question. Sometimes in the render function u just got a computed result which is primitive value, and u just want a text node. If u are not clear if primitive value is not supported any more after vue^2.5.14, just admit it. that will also be helpful.

[icarusion]

@Hishengs Maybe you can find something here vuejs/vue#7282