通过 props 的调度动作最终在下一个 js 中超出了最大深度

dispatch action via props end up in maximum depth exceeded in next js

我试图通过 Next.js 中的道具调用我的动作,但它一直超过最大深度,我不明白为什么。

UNSAFE_componentWillReceiveProps(nextProps) {
    let rate_updated = [...this.props.previousArray];//copying store value to local variable
    for (let i = 0; i < this.props.crypto_head_coins.length; i++) {
        //my code here
    }
    this.props.update_rate_array(rate_updated) // calling action to set array value in state
    this.setState({ rate_updated }); // setting array to state
}

这就是我映射它们的方式

const mapDispatchToProps = dispatch => ({
    update_rate_array: Array => dispatch(update_rate_array(Array))
});
const mapStateToProps = state => ({
   previousArray: state.crypto_head_update
});

如下检查this.props是否等于nextProps,不同时才执行

UNSAFE_componentWillReceiveProps(nextProps) {
   if(this.props !== nextProps){
       let rate_updated = [...this.props.previousArray];//copying store value to local variable
       for (let i = 0; i < this.props.crypto_head_coins.length; i++) {
          //my code here
       }
       this.props.update_rate_array(rate_updated) // calling action to set array value in 
       state
       this.setState({ rate_updated }); // setting array to state
   }
}