jquery - check if query string present on URL?

Question

Is it possible using jquery (or just javascript) to check for the existence of a query string on the URL?

@Mic - if the question is to be taken literally (just "is it present?"), it's a different question with a much simpler answer. — Matchu
– Matchu, Commented Jul 12, 2010 at 21:03

Felix Kling · Accepted Answer · 2010-07-12 21:02:01Z

40

Yes, the location object has a property search that contains the query string.

alert(window.location.search);

answered Jul 12, 2010 at 21:02

Felix Kling

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Comments

Matchu · Accepted Answer · 2010-07-12 21:02:45Z

32

document.location contains information about the URL, and document.location.search contains the query string, e.g. ?foo=bar&spam=eggs. As for testing its presence, how about:

if(document.location.search.length) {
    // query string exists
} else {
    // no query string exists
}

No jQuery required :o

answered Jul 12, 2010 at 21:02

Matchu

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Comments

Neil Outler · Accepted Answer · 2010-07-12 21:03:05Z

5

I would think you could use the javascript match operator.

var url = window.location.search;
if (url.match("your string").length > 0) {
}

answered Jul 12, 2010 at 21:03

Neil Outler

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2 Comments

sksallaj Over a year ago

fyi, this is poor because match can return nulls, and putting length of a null object would result in an error

Jason Ellis Over a year ago

True. That problem can be solved via something like: if(url.indexOf("your string") !== -1)

Rixius · Accepted Answer · 2010-07-12 21:28:39Z

-3

Check out http://rixi.us/post/791257125/get-and-server-free-dynamic-contet

a method to extract any query string parameters
Use::

if (_GET['key']) {
  var key = _GET['key']
}

edited Jul 12, 2010 at 21:28

answered Jul 12, 2010 at 21:05

Rixius

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3 Comments

theringostarrs Over a year ago

-1. OP specified jQuery (or Javascript) not PHP as the language they are using.

Rixius Over a year ago

@theringostarrs It actually is not PHP, it is just a small amount of javascript that I wrote a long while back that allows you to extract GET variables from the URL. Vastly outdated, and I'm not sure that link works anymore, but it is/was Javascript.

Chris Over a year ago

Why did you mix JavaScript and PHP in literally the same if-block on a JavaScript question

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