将JS数组转换为对象-JavaScript
假设我们有一个像这样的对象数组-
const arr = [
{id: 1, name: "Mohan"},
{id: 2,name: "Sohan"},
{id: 3,name: "Rohan"}
];我们需要编写一个函数，该函数接受一个这样的数组，并从中构造一个对象，其id属性为键，名称为值
上述数组的输出应为-
const output = {1:{name:"Mohan"},2:{name:"Sohan"},3:{name:"Rohan"}}示例
以下是代码-
const arr = [
{id: 1, name: "Mohan"},
{id: 2,name: "Sohan"},
{id: 3,name: "Rohan"}
];
const arrayToObject = arr => {
const res = {};
for(let ind = 0; ind < arr.length; ind++){
res[ind + 1] = {
"name": arr[ind].name
};
};
return res;
};
console.log(arrayToObject(arr));输出结果
这将在控制台中产生以下输出-
{
'1': { name: 'Mohan' },
'2': { name: 'Sohan' },
'3': { name: 'Rohan' }
}