Parse variables from querystring in javascript

Question

Possible Duplicate:
How can I get query string values?

I have the following querystring:

"active_tab=delivered&active_tab=all&active_tab=delivered&active_tab=outstanding
&active_tab=delivered&active_tab=outstanding&active_tab=all&active_tab=delivered&active_tab=outstanding&title_filter=conformance&title_filter=delivering&title_filter=packaging
&title_filter=delivering&title_filter=all&title_filter=delivering&title_filter=all&title_filter=packaging&title_filter=conformance&title_filter=packaging
&title_filter=delivering&title_filter=packaging&title_filter=ordered"

How would I parse the final title_filter ("ordered") and active_tab ("delivered") from the above querystring? Also, if that querystring variable doesn't exist, have it = ""

Is that all one query string? It's got the same key in there multiple times! — gen_Eric, Jan 17 '13 at 21:06
`explode("&", $array);` while looping through array; `explode("=", $element);` each element of the first array...do stuff with the tokens... — crush, Jan 17 '13 at 21:06
I wrote this a while back, you can see if it works for you: https://gist.github.com/3528917 — gen_Eric, Jan 17 '13 at 21:06
Regex may be worth exploring: https://developer.mozilla.org/en-US/docs/JavaScript/Reference/Global_Objects/RegExp — jholloman, Jan 17 '13 at 21:07

bevacqua · Accepted Answer · 2013-01-17T21:09:55.670

var query = {};

var largeString = "active_tab=delivered&active_tab=all&active_tab=delivered&active_tab=outstanding&active_tab=delivered&active_tab=outstanding&active_tab=all&active_tab=delivered&active_tab=outstanding&title_filter=conformance&title_filter=delivering&title_filter=packaging&title_filter=delivering&title_filter=all&title_filter=delivering&title_filter=all&title_filter=packaging&title_filter=conformance&title_filter=packaging&title_filter=delivering&title_filter=packaging&title_filter=ordered";

largeString.split('&').forEach(function(keyValue){
    var kvp = p.split('=');
    query[kvp[0]]= kvp[1];
});

if you need to support arrays:

largeString.split('&').forEach(function(keyValue){
    var kvp = keyValue.split('=');

    if(kvp[0] in query){
        if(typeof(query[kvp[0]] === 'string')){
            query[kvp[0]] = [query[kvp[0]]];
        }
        query[kvp[0]].push(kvp[1]);
    }else{
        query[kvp[0]] = kvp[1];
    }
});

score 0 · Answer 2 · answered Jan 17 '13 at 21:20

0

I modified the querystring to remove duplicates and then I did:

var active_tab = window.location.search.split('active_tab=')[1].split('&')[0]
var title_filter = window.location.search.split('title_filter=')[1].split('&')[0]

answered Jan 17 '13 at 21:20

David542

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Parse variables from querystring in javascript

2 Answers2