js 如何截取url参数

// 假设当前URL为 https://example.com/?param1=value1&param2=value2

// 获取查询字符串
const queryString = window.location.search;

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

// 获取特定参数
const param1 = urlParams.get('param1'); // "value1"
const param2 = urlParams.get('param2'); // "value2"

console.log(param1, param2);

// 假设当前URL为 https://example.com/?param1=value1&param2=value2

// 获取查询字符串
const queryString = window.location.search.substring(1); // 去掉'?'

// 使用正则表达式匹配参数
const params = queryString.match(/([^&=]+)=([^&]*)/g);

const paramObj = {};
params.forEach(param => {
  const [key, value] = param.split('=');
  paramObj[decodeURIComponent(key)] = decodeURIComponent(value);
});

console.log(paramObj.param1); // "value1"
console.log(paramObj.param2); // "value2"

// 假设当前URL为 https://example.com/?param1=value1&param2=value2

// 获取查询字符串
const queryString = window.location.search.substring(1); // 去掉'?'

// 分割成键值对数组
const paramsArray = queryString.split('&');

const paramObj = {};
paramsArray.forEach(param => {
  const [key, value] = param.split('=');
  paramObj[decodeURIComponent(key)] = decodeURIComponent(value);
});

console.log(paramObj.param1); // "value1"
console.log(paramObj.param2); // "value2"