Type of VNodeData style property should accept string values

[VitorLuizC]

Version

2.6.9

Reproduction link

https://codesandbox.io/s/pkpkn7ljym

Steps to reproduce

Just try to use a string value for VNodeData's style property.

What is expected?

Vue handle string values for style, so types should allow the same.

What is actually happening?

Type of VNodeData's style don't accept string values.

---

@flow type declarations has same issue.

[posva]

when do you have a string property in style? Are you creating or modifying existing vnodes (they are read-only)

[VitorLuizC]

When I'm creating them. The problems happens exactly when I'm creating components with createElement and VNodeData's style can't be string, even Vue supporting it.

[posva]

Ok, I was confused because you directly used the type on a variable instead of passing the object with not type to h

[VitorLuizC]

Sorry, my example may be bad.

I also found on sources the function where Vue handle string values for style bindings (if it help).

vue/src/platforms/web/util/style.js

Lines 29 to 34 in 653c74e

	export function normalizeStyleBinding (bindingStyle: any): ?Object {
	if (Array.isArray(bindingStyle)) {
	return toObject(bindingStyle)
	}
	if (typeof bindingStyle === 'string') {
	return parseStyleText(bindingStyle)

[posva]

It was good already, but thanks for sharing :)