ead property 'Browser' of undefined TypeError: Cannot read property 'Browser' of undefined

This error message indicates that the code is trying to access the property 'Browser' of an undefined variable. It's likely that there is a typo or an issue with the code that is causing the variable to be undefined. To fix the error, you will need to identify where the variable should be defined and ensure that it is properly initialized before accessing its properties.

相关问题

从下列结构中[{"code":"EAD","fields":[{"type":"number","show":true}]}]使用java的stream获取show=true的所有的fields集合

在Java中，你可以使用`Stream API`来处理这个结构，特别是`filter()`和`map()`方法来获取`fields`中`show`字段为`true`的所有元素。假设`EAD`是一个自定义的类，而`fields`是一个`List<Field>`，其中`Field`类有一个`show`属性。下面是代码示例：

import java.util.List;
import java.util.stream.Collectors;

class Field {
    private boolean show;

    // getters and setters...

    public boolean isShow() {
        return show;
    }
}

// 假设EAD对象有fields属性
EAD ead = ...;
List<Field> fieldsList = ead.getFields(); // 获取fields列表

// 使用Stream API筛选show为true的fields
List<Field> showTrueFields = fieldsList.stream()
    .filter(field -> field.isShow()) // 过滤show为true的field
    .collect(Collectors.toList()); // 将结果收集到新的列表中