js怎么获取地址栏参数值

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

// 获取查询参数字符串
const queryString = window.location.search;

// 创建URLSearchParams对象
const urlParams = new URLSearchParams(queryString);

// 获取特定参数值
const name = urlParams.get('name'); // "John"
const age = urlParams.get('age');   // "30"

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

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

function getQueryParamByName(name) {
    const regex = new RegExp('[?&]' + name + '(=([^&#]*)|&|#|$)');
    const results = regex.exec(window.location.href);
    if (!results) return null;
    if (!results[2]) return '';
    return decodeURIComponent(results[2].replace(/\+/g, ' '));
}

const name = getQueryParamByName('name'); // "John"
const age = getQueryParamByName('age');   // "30"

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