javascript - What is the correct way to write vuex's mapState to coexist with other computed properties?

Question

The official example usage of mapState is:

computed:mapState(['count'])

How should we write other computed attributes that do not require state? I tried

computed:{mapState(['count']), age(){return this.old_age + 1;}}

will report an error

computed:mapState(['count', age(){return this.old_age + 1;}])

will also report an error, even

computed:{mapState(['count'])}

Will report an error. What is the correct way to write it?

过去多啦不再A梦 · Answer

Can you read the official vuex documentation before asking?
computed: { localComputed () { / ... / },
// Use the object spread operator to mix this object into an external object
...mapState({ // ... })
}
If you don’t know what the object spread operator is, please check the es6/7 documentation