如何将字符串转换为具有键值对的对象

function queryStringToObject(queryString) {
    const obj = {};
    const keyValuePairs = queryString.split('&');
    keyValuePairs.forEach(pair => {
        const [key, value] = pair.split('=');
        obj[key] = decodeURIComponent(value);
    });
    return obj;
}

const queryString = 'name=John&age=30';
const obj = queryStringToObject(queryString);
console.log(obj); // { name: 'John', age: '30' }

function jsonStringToObject(jsonString) {
    return JSON.parse(jsonString);
}

const jsonString = '{"name":"John","age":30}';
const obj = jsonStringToObject(jsonString);
console.log(obj); // { name: 'John', age: 30 }

function csvToObject(csvString) {
    const lines = csvString.split('\n');
    const headers = lines[0].split(',');
    const result = [];

    for (let i = 1; i < lines.length; i++) {
        const obj = {};
        const currentline = lines[i].split(',');

        for (let j = 0; j < headers.length; j++) {
            obj[headers[j]] = currentline[j];
        }

        result.push(obj);
    }

    return result;
}

const csvString = 'name,age\nJohn,30\nJane,25';
const objArray = csvToObject(csvString);
console.log(objArray); // [ { name: 'John', age: '30' }, { name: 'Jane', age: '25' } ]