js href 传参数值

function addParamsToUrl(url, params) {
    const queryString = Object.keys(params)
        .map(key => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`)
        .join('&');
    return url + (url.includes('?') ? '&' : '?') + queryString;
}

const baseUrl = 'http://example.com/page.html';
const params = { key1: 'value1', key2: 'value2' };
const urlWithParams = addParamsToUrl(baseUrl, params);
console.log(urlWithParams); // 输出: http://example.com/page.html?key1=value1&key2=value2

function getParamsFromUrl(url) {
    const params = new URLSearchParams(new URL(url).search);
    const result = {};
    for (const [key, value] of params.entries()) {
        result[decodeURIComponent(key)] = decodeURIComponent(value);
    }
    return result;
}

const urlWithParams = 'http://example.com/page.html?key1=value1&key2=value2';
const params = getParamsFromUrl(urlWithParams);
console.log(params); // 输出: { key1: 'value1', key2: 'value2' }