ts报错:Object is possibly 'null' 请问怎么解决?

这么写是不行的吗?请问应该怎么写呢?

`

readonly state = {
    fold: true,
    answer: null
};

render () {
    return (
        
{ this.state.answer && this.state.answer.content }
) } `

最佳答案

readonly state: any = {
    fold: true,
    answer: null
};