javascript - 递归展平对象数组中的嵌套对象

Question

我一直在尝试创建一个动态函数，该函数可以将嵌套的 key/val 对象展平在对象数组中

我如何获得这种结构？知道我想动态调用键并将父键和子键与_绑定。

输入：

const list = [
    {
        month: 'Jan', 
        value: 20, 
        metric: { 
            name: 'Rice', 
            measurement: 'Kg', 
            is_currency: false 
        },
        entity: { 
            name: 'Rev', 
            type: 'limited company'
        }
    },
    {
        month: 'Jan', 
        value: 1000, 
        metric: { 
            name: 'Revenue', 
            measurement: 'Dollars', 
            is_currency: true
        },
        entity: { 
            name: 'Rev', 
            type: 'limited company'
        }
    },
]

预期输出：

const list = [
    {
        month: 'Jan', 
        value: 20, 
        metric_name: 'Rice',
        metric_measurement: 'Kg', 
        metric_currency: false,
        entity_name: 'Rev', 
        entity_type: 'limited company'
    },
    {
        month: 'Jan', 
        value: 1000, 
        metric_name: 'Revenue', 
        metric_measurement: 'Dollars', 
        metric_is_currency: true
        entity_name: 'Rev', 
        entity_type: 'limited company'
    },
]