js获取来路域名参数

// 假设当前URL为：https://example.com/?name=John&age=30

// 获取当前URL的查询字符串部分
const queryString = window.location.search;

// 创建一个URLSearchParams对象
const params = new URLSearchParams(queryString);

// 获取特定参数的值
const name = params.get('name'); // 'John'
const age = params.get('age'); // '30'

console.log(`Name: ${name}, Age: ${age}`);

const name = params.get('name');
if (name) {
  console.log(`Name: ${name}`);
} else {
  console.log('Name parameter is missing');
}

// 编码
const encodedName = encodeURIComponent('John Doe');
console.log(encodedName); // 'John%20Doe'

// 解码
const decodedName = decodeURIComponent(encodedName);
console.log(decodedName); // 'John Doe'