react中[...this.state.inputConList,domTar]这种写法是什么意思

Question

_AddFun(){
    var domTar = this.refs.inputOrg.value;
    this.setState({
        inputConList: [...this.state.inputConList,domTar]
    });
}

inputConList: [...this.state.inputConList,domTar]
这句写法不理解，求指教..

Answer 1

没事儿多看看规范：扩展语句