过滤数组中具有空值的对象 JavaScript
javascriptweb developmentobject oriented programming更新于 2025/10/3 2:20:17
假设，我们有一个关于公司某些员工的对象数组。但该数组包含一些坏数据，即指向空字符串或假值的键。我们的工作是编写一个函数，该函数接收数组并去除名称键为空或未定义或空字符串的对象并返回新对象。
对象数组如下所示 −
let data = [{
"name": "Ramesh Dhiman",
"age": 67,
"experience": 45,
"description": ""
}, {
"name": "",
"age": 31,
"experience": 9,
"description": ""
}, {
"name": "Kunal Dhiman",
"age": 27,
"experience": 7,
"description": ""
}, {
"name": "Raman Kumar",
"age": 34,
"experience": 10,
"description": ""
}, {
"name": "",
"age": 41,
"experience": 19,
"description": ""
}
]
让我们来编写该函数的代码 −
示例
let data = [{
"name": "Ramesh Dhiman",
"age": 67,
"experience": 45,
"description": ""
}, {
"name": "",
"age": 31,
"experience": 9,
"description": ""
}, {
"name": "Kunal Dhiman",
"age": 27,
"experience": 7,
"description": ""
}, {
"name": "Raman Kumar",
"age": 34,
"experience": 10,
"description": ""
}, {
"name": "",
"age": 41,
"experience": 19,
"description": ""
}
]
const filterUnwanted = (arr) => {
const required = arr.filter(el => {
return el.name;
});
return required;
};
console.log(filterUnwanted(data));
输出
控制台中的输出将是 −
[
{ name: 'Ramesh Dhiman', age: 67, experience: 45, description: '' },
{ name: 'Kunal Dhiman', age: 27, experience: 7, description: '' },
{ name: 'Raman Kumar', age: 34, experience: 10, description: '' }
]
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有用资源
javascript 参考教程 - 该教程包含有关 javascript 的更多信息:https://www.cainiaomax.com/javascript/
