匹配？后面的值？

Question

比如url：http://orgname=123，取出123如何写正则

Answer 1

decodeURIComponent(location.search.replace(/^\?/, '').split('=')[1])
decodeURIComponent(/orgname=([^=]+)/.exec(location.search)[1])

Answer 2

function getQueryString(name) {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if(r != null){
        return decodeURI(r[2]);
    } 
    return null;
}

Answer 3

var url = 'http://orgname=123';
var result = new RegExp(/=.*/).exec(url)[0].substr(1);
console.log(result);

Answer 4

这个不用正则也可以啊，字符串分割