How to access request query string parameters in javascript?

Question

I've seen numerous solutions that utilize RegEx, and to be quite frank, that seems ridiculously excessive since javascript is so versatile.

There must be a simpler way to access request parameters.

Could somebody demonstrate for me?

I believe OP refers to the query string attached to the URL of the current page. Clarifying that might help, but really it seems clear enough to me. — user2625787
– user2625787, Commented Aug 2, 2013 at 17:26

keeehlan · Accepted Answer · 2013-08-02 17:43:47Z

4

I found a useful method in the depths of the net.

function querySt(Key) {
    var url = window.location.href;
    KeysValues = url.split(/[\?&]+/);
    for (i = 0; i < KeysValues.length; i++) {
        KeyValue = KeysValues[i].split("=");
        if (KeyValue[0] == Key) {
            return KeyValue[1];
        }
    }
}

Downvotes and plugins aside, thanks anyways.

answered Aug 2, 2013 at 17:43

keeehlan

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6 Comments

Mike Ramsey Over a year ago

nice work finding a raw javascript version, however, that's not what you asked for.

Mike Ramsey Over a year ago

I actually like the pure javascript version, as it doesn't require loading in some additional library. Either way, glad you came up with a solution.

Michael come lately Over a year ago

Minor point of contention: your .split() uses a RegEx, which you complained about in the question. Not that I'd do it differently. =)

ClarkeyBoy Over a year ago

This works in my case but I notice this doesn't handle arrays - what if there are multiple values for one parameter (i.e. param1=val1&param1=val2&param1=val3)? Neat solution which works for most situations in any case.

Sz. Over a year ago

window.location.search, I suppose. (For reasons seen e.g. here, in probably the best guide on URL encoding.)

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Adil · Accepted Answer · 2013-08-02 17:24:05Z

0

You can use jQuery plugin Purl (A JavaScript URL parser) v2.3.1

var queryStringParameter = $.url().param('queryStringParameter');

answered Aug 2, 2013 at 17:24

Adil

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Comments

Mike Ramsey · Accepted Answer · 2013-08-02 17:32:17Z

0

jQuery BBQ plugin to the rescue. See deparam method

answered Aug 2, 2013 at 17:32

Mike Ramsey

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