Javascript Regex: Get everything from inside / tags
What I want
From the above subject
I want to get search=adam
and page=content
and message=2
.
Subject:
/search=adam/page=content/message=2
开发者_开发知识库
What I have tried so far
(\/)+search+\=+(.*)\/
But this is not good because sometimes the subject ends with nothing and in my case there must be a /
(\/)+search+\=+(.*?)+(\/*?)
But this is not good because goes trought the (\/*?)
and shows me everyting what's after /search=
Tool Tip:
Regex Tester
Use String.split(), no regex required:
var A = '/search=adam/page=content/message=2'.split('/');
Note that you may have to discard the first array item using .slice(1)
.
Then you can iterate through the name-value pairs using something like:
for(var x = 0; x < A.length; x++) {
var nameValue = A[x].split('=');
if(nameValue[0] == 'search') {
// do something with nameValue[1]
}
}
This assumes that no equals signs will be in the value. Hopefully this is the case, but if not, you could use nameValue.slice(1).join('=')
instead of nameValue[1]
;
shows me everyting what's after /search=
You used a greedy .*
that will happily match slashes as well. You can use a non-greedy .*?
, or a character class that excludes the slash:
(\/|^)search=([^\/]*)(\/|$)
Here the front and end may be either a slash or the start/end (^
/$
) of the string. (I removed the +
s, as I can't work out at all what they're supposed to be doing.)
Alternatively, forget the regex:
var params= {};
var pieces= subject.split('/');
for (var i= pieces.length; i-->0;) {
var ix= pieces[i].indexOf('=');
if (ix!==-1)
params[pieces[i].slice(0, ix)]= pieces[i].slice(ix+1);
}
Now you can just say params.search
, params.page
etc.
精彩评论