js 转url参数

const params = {
  name: 'John Doe',
  age: 30,
  city: 'New York'
};

const queryString = Object.keys(params)
  .map(key => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`)
  .join('&');

console.log(queryString); // 输出: "name=John%20Doe&age=30&city=New%20York"

const queryString = "name=John%20Doe&age=30&city=New%20York";

const params = queryString.split('&').reduce((acc, pair) => {
  const [key, value] = pair.split('=');
  acc[decodeURIComponent(key)] = decodeURIComponent(value);
  return acc;
}, {});

console.log(params); // 输出: { name: 'John Doe', age: '30', city: 'New York' }