js 获取参数数组

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

// 获取URLSearchParams对象
const params = new URLSearchParams(window.location.search);

// 将参数转换为数组
const paramsArray = Array.from(params.entries());

console.log(paramsArray); // 输出: [["param1", "value1"], ["param2", "value2"]]

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

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

// 将查询字符串按'&'分割成数组
const paramsArray = queryString.split('&').map(param => {
  const [key, value] = param.split('=');
  return [decodeURIComponent(key), decodeURIComponent(value)];
});

console.log(paramsArray); // 输出: [["param1", "value1"], ["param2", "value2"]]

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

const queryString = window.location.search.substring(1);
const paramsArray = queryString.match(/([^=&]+=[^&]*)/g).map(param => {
  const [key, value] = param.split('=');
  return [decodeURIComponent(key), decodeURIComponent(value)];
});

console.log(paramsArray); // 输出: [["param1", "value1"], ["param2", "value2"]]

// 处理重复参数
const paramsMap = new Map();
paramsArray.forEach(([key, value]) => {
  if (paramsMap.has(key)) {
    if (Array.isArray(paramsMap.get(key))) {
      paramsMap.get(key).push(value);
    } else {
      paramsMap.set(key, [paramsMap.get(key), value]);
    }
  } else {
    paramsMap.set(key, value);
  }
});

console.log(paramsMap); // 输出: Map { "param1" => "value1", "param2" => "value2" }