[Bug Report] row-style property is invalid at initialization time.

[panhezeng]

Element UI version

2.7.2

OS/Browsers version

MAC OS 10.14 / Google Chrome 73

Vue version

2.6.10

Reproduction Link

https://codepen.io/panhezeng/pen/eoZVwW

Steps to reproduce

用官方最基本的示例就能重现。
设置:row-style="getRowStyle"
methods: {
// 每行的样式
getRowStyle({ row }) {
return { display: "none" };
}
}
没有隐藏行。看生成代码， tr上面出现了style，但是值为空。
2.7.0之前的版本是好的。

What is Expected?

设置:row-style="getRowStyle"
methods: {
// 每行的样式
getRowStyle({ row }) {
return { display: "none" };
}
}
隐藏行

What is actually happening?

没有隐藏行。

[element-bot]

Translation of this issue:

Element UI version

2.7.2

OS/Browsers version

MAC OS 10.14 / Google Chrome 73

Vue version

2.6.10

Reproduction Link

https://codepen.io/panhezeng/pen/eoZVwW

Steps to reproduce

The most basic official examples can be reproduced.

Settings: row-style= "getRowStyle"
Methods: {

// Style of each line
GetRowStyle ({row}){

Return {display: `none'};
}

}
There are no hidden rows. Look at the generated code, <tr class="el-table__row" style="> tr has style above it, but the value is empty.

The version before 2.7.0 is good.

What is Expected?

Settings: row-style= "getRowStyle"
Methods: {

// Style of each line
GetRowStyle ({row}){

Return {display: `none'};
}

}
Hidden rows

What is actually happening?

There are no hidden rows.