js:如何从对象数组中过滤对象键?

Question

我有一个类似的数组

let array = [
{
name: "1-name",
age: 18,
direction: "jsjs"
phone: [phone]
},
{
name: "2-name",
age: 38,
direction: "jsjsjs"
},
{
name: "3-name",
age: 58,
direction: "jsjsjsjs"
}
]

我想根据它的键对它进行过滤得到一个像这样的数组

[
{
name: "1-name",
direction: "jsjs"
},
{
name: "2-name",
direction: "jsjsjs"
},
{
name: "3-name",
direction: "jsjsjsjs"
}
]

你能帮帮我吗?我试着解决这个问题，但没有成功

Answer 1

您可以使用数组map函数

请看下面的例子:

const arr = [
{
name: "1-name",
age: 18,
direction: "jsjs",
phone: [phone]
},
{
name: "2-name",
age: 38,
direction: "jsjsjs",
phone: [phone]
},
{
name: "3-name",
age: 58,
direction: "jsjsjsjs",
phone: [phone]
}
]
const result = arr.map(({ name, direction }) => {
return {
name, 
direction
};
})
console.log(result);

Answer 2

你可以试试这个代码:

let newArr = [];
array.forEach((e) => {
newArr.push({ name: e.name, direction: e.direction });
});

Answer 3

map方法将工作。如何实现这取决于你是否想创建一个新的数组result与以前的对象删除，或简单地返回那些你想要保持。这将创建一个新的数组您的原始数组将不受影响。

array.map(function (result) {
delete result.age;
delete result.phone;
});
console.log(result)