Pull variable from Query String and add into JS redirect URL

Question

I'm trying to get the value of a variable in the query string example.com/?hop=test

And then pass it to a JavaScript in this form:

var exitsplashpage = 'http://example2.com/?hop=original_hop';

How do I get the original hop variable value using JavaScript and what is the correct format to put it into the exitsplashpage var?

Thanks!

To extract the value, have a look at: stackoverflow.com/questions/647259/javascript-query-string — Felix Kling
– Felix Kling, Commented Apr 14, 2011 at 0:03

Community · Accepted Answer · 2017-05-23 12:26:51Z

1

Using this getQueryString() function from the link that @Felix Kling posted, you would do the following:

var exitsplashpage = 'http://example2.com/?hop=' + getQueryString()["hop"];

Either that, or have a look at jQuery Query String Object, with which you'd do this:

var exitsplashpage = 'http://example2.com/?hop=' + $.query.get("hop");

edited May 23, 2017 at 12:26

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answered Apr 14, 2011 at 0:12

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clmarquart · Accepted Answer · 2011-04-14 00:32:04Z

0

Try this:

var exitsplashpage = window.location.search.match(/\?hop=([^\&]*)/)[1]

edited Apr 14, 2011 at 0:32

answered Apr 14, 2011 at 0:07

clmarquart

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4 Comments

Eliasdx Over a year ago

This is unsafe for more than one URL parameter.

Eliasdx Over a year ago

I'd use ?|& to allow ?foo=bar&hop=poh&bar=foo. Also OP is checking against hop. But that is kinda obvious.

clmarquart Over a year ago

Calm down, simple mistake on my part. But if you want to go there, I would say it's also kinda obvious that the OP was not asking for ?foo=bar&hop=poh&bar=foo.

Dustin Over a year ago

Thank you. This worked with a minor modification: var exitsplashpage = 'http://example2.com/?hop=' + window.location.search.match(/[\?\&]hop=([^\&]*)/)[1]; needed to include the redirect URL and I didn't mention, but the hop variable might not be the first in the query string.

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