data.reduce is not a function TypeError: data.includes is not a function
时间: 2023-11-23 20:07:48 浏览: 36
The error message you received suggests that `data` does not have a `reduce` or `includes` function.
Firstly, make sure that `data` is actually an array because both `reduce` and `includes` are array methods. You can check its type using `Array.isArray(data)`.
If `data` is indeed an array, then the error might be occurring because you are trying to call these methods on an undefined or non-array value within the array. In such cases, you should check if the specific element you are trying to call `reduce` or `includes` on exists and is of the expected type.
For example, you could use `Array.prototype.filter` to remove any undefined or non-array elements from `data` before using `reduce` or `includes` on it:
```javascript
const validData = data.filter(element => Array.isArray(element));
```
Then, you can apply the desired methods on the filtered `validData` array. Remember to handle the case when `validData` is empty or doesn't contain the expected values.
If the issue persists, please provide more context or code snippets so that I can better understand the problem and assist you further.