更新时间:2022-11-11 08:59:11
我建议使用子组替代正则表达式单独捕获参数的名称和值:
I would suggest an alternative regex, using sub-groups to capture name and value of the parameters individually:
function getUrlParams(url) {
var re = /(?:\?|&(?:amp;)?)([^=&#]+)(?:=?([^&#]*))/g,
match, params = {},
decode = function (s) {return decodeURIComponent(s.replace(/\+/g, " "));};
if (typeof url == "undefined") url = document.location.href;
while (match = re.exec(url)) {
params[decode(match[1])] = decode(match[2]);
}
return params;
}
var result = getUrlParams("http://maps.google.de/maps?f=q&source=s_q&hl=de&geocode=&q=Frankfurt+am+Main&sll=50.106047,8.679886&sspn=0.370369,0.833588&ie=UTF8&ll=50.116616,8.680573&spn=0.35972,0.833588&z=11&iwloc=addr");
结果
是一个对象:
{
f: "q"
geocode: ""
hl: "de"
ie: "UTF8"
iwloc: "addr"
ll: "50.116616,8.680573"
q: "Frankfurt am Main"
sll: "50.106047,8.679886"
source: "s_q"
spn: "0.35972,0.833588"
sspn: "0.370369,0.833588"
z: "11"
}
正则表达式分解如下:
(?: # non-capturing group
\?|& # "?" or "&"
(?:amp;)? # (allow "&", for wrongly HTML-encoded URLs)
) # end non-capturing group
( # group 1
[^=]+ # any character except "=", "&" or "#"; at least once
) # end group 1 - this will be the parameter's name
(?: # non-capturing group
=? # an "=", optional
( # group 2
[^]* # any character except "&" or "#"; any number of times
) # end group 2 - this will be the parameter's value
) # end non-capturing group