对象

Question

我有一个JSON对象如下：

let data = [{"grade":"A","batch":"night", "rating":5}, {"grade":"B", "batch":"morning", "rating":6},
{"grade":"C", "batch":"night", "rating":7},
{"grade":"A", "batch":"morning", "rating":8}]

我想在名为“grade”和“batch”

的对象的两个属性上过滤json

我怎样才能在javascript中执行此操作？

Answer 1

以下是示例代码。您可以添加过滤器对象，以便过滤和运行代码。结果将显示在窗口的控制台中。

您可以尝试运行输出的代码段

function multiFilter(array, filters){
    const filterKeys = Object.keys(filters);
    // filters all elements passing the criteria
    return array.filter((item) => {
        // dynamically validate all filter criteria
        return filterKeys.every(key => !!~filters[key].indexOf(item[key]));
    });
}

let data = [{"grade":"A","batch":"night", "rating":5}, {"grade":"B", "batch":"morning", "rating":6},
{"grade":"C", "batch":"night", "rating":7},
{"grade":"A", "batch":"morning", "rating":8}]
    
let filters = {
    "grade" : ["A", "B"],
    "batch" : ["morning"]
};


let  filtered = multiFilter(data, filters);

console.log(filtered);