JSON转URL参数

function parseParams(data) {
    try {
        var tempArr = [];
        for (var i in data) {
            var key = encodeURIComponent(i);
            var value = encodeURIComponent(data[i]);
            tempArr.push(key + '=' + value);
        }
        var urlParamsStr = tempArr.join('&');
        return urlParamsStr;
    } catch (err) {
        return '';
    }
}   

var obj = {
    name: 'zhangsan',
    age: 100
};

parseParams(obj); //"name=zhangsan&age=100"

URL参数转JSON

function getParams(url) {
  try {
    url = url.match(/\?([^#]+)/)[1];
    const obj = {};
    const arr = url.split('&');
    for (let i = 0; i < arr.length; i++) {
      let subArr = arr[i].split('=');
      let key = decodeURIComponent(subArr[0]);
      let value = decodeURIComponent(subArr[1]);
      obj[key] = value;
    }
    return obj;
  } catch (err) {
    return null;
  }
}

var urlStr = 'http://www.xxx.com/test?name=zhangshan&age=100#hello';

getParams(urlStr); //{name: "zhangshan", age: "100"}