解析/重组url参数

function parseUrlParams(json_data) {
    var tempArr = [];
    try {
        for (let k in json_data) {
            let key = encodeURIComponent(k);
            let value = encodeURIComponent(json_data[k]);
            tempArr.push(key + '=' + value);
        }
        let url = tempArr.join('&');
        return decodeURIComponent(url);
    } catch (e) {
        return '';
    }
}

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