映射到 axios 响应的 _id 时未捕获类型错误：无法读取未定义的属性（读取“_id”）

Question

Problem with map function after axios fetch. while mapping into _id of axios response Uncaught TypeError: Cannot read properties of undefined (reading '_id')

    state = {
        options: []
        
    }

  deleteOption = (optiontodelete) => {
        Axios.delete(`http://127.0.0.1:3000/options/${optiontodelete}`, { headers: AuthHeader() })
        .then(res => {if(res.status === 200) 
            this.notifyMessage()
        }).then(
            this.setState({ 
            options: this.state.options.map((item) =>{
                optiontodelete !== item._id
            })
        })
        ).catch(err => console.log(err.response.data))
        
        console.log(optiontodelete)
    }```

This is the Error I got:

Uncaught TypeError: Cannot read properties of undefined (reading '_id')

//Function deleteOption is called with the argument of id (eg: 62e7563624811d383e390d1b)

What's wrong here ??

Answer 1

Maybe item is undefind?

console.log(item); // undefind