How vue.js determines whether an object has a certain attribute

vue.js method to determine whether an object has a certain attribute: [if(row.hasOwnProperty('url')){//The 'url' attribute of the row object exists}else{//The row object does not exist 'url' attribute}].

The operating environment of this article: windows10 system, vue 2.5.2, thinkpad t480 computer.

How do we determine whether an object has a certain attribute or field in vue?

The judgment method is as follows:

if(row.hasOwnProperty('url')){
    //row对象存在'url'属性
}else{
    //row对象不存在'url'属性
}

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