url解析

1. 获取当前地址url中的参数

     function getParam(name) {
        let query = window.location.search.substring(1);
        let vars = query.split('&');
        for (let i = 0; i < vars.length; i++) {
            let pair = vars[i].split('=');
            if (pair[0] == name) {
                return pair[1];
            }
        }
        return (null);
    }

使用的话非常简单，如下截图获取页面参数page

 

 

2. 完整解析某个url地址内容

 

function parseURL(url) {
    var a = document.createElement('a');
    a.href = url;
    return {
        source: url,
        protocol: a.protocol.replace(':', ''),
        host: a.hostname,
        port: a.port,
        query: a.search,
        params: (function () {
            var ret = {},
                seg = a.search.replace(/^\?/, '').split('&'),
                len = seg.length, i = 0, s;
            for (; i < len; i++) {
                if (!seg[i]) { continue; }
                s = seg[i].split('=');
                ret[s[0]] = s[1];
            }
            return ret;
        })(),
        file: (a.pathname.match(/\/([^\/?#]+)$/i) || [, ''])[1],
        hash: a.hash.replace('#', ''),
        path: a.pathname.replace(/^([^\/])/, '/$1'),
        relative: (a.href.match(/tps?:\/\/[^\/]+(.+)/) || [, ''])[1],
        segments: a.pathname.replace(/^\//, '').split('/')
    };
}    

 通过该方法，我们会得到比较完善的url的解析内容，其中的params是其中的参数对象，segments是url的path路径