Replace with regular expression in Javascript

Question

I have this regular expression:

var a = window.location.href.replace(/((.*)[&|?])(sessionid(=[^&]*))([&|#](.*))/, '$1$5');

That remove the sessionid from an example url like this:

http://...&parent_location=Test&abc=123&sessionid=q26bh6bkm8g49aeopem2obdm87igrsfe&...

The result will be:

http://...&parent_location=Test&abc=123&&...

My question is, if in that replace I can add the replace also for the parent_location

1. Parse the URL/query string into an array/object. 2. Manipulate the data as needed. 3. Reformat into a URL. - Much saner than regexen. — deceze
– deceze ♦, Commented Dec 27, 2016 at 10:48
This result: http://...&&abc=123&&... I wan't remove also the parent_location query string, would be appreciate remove also the & not needed — Piero
– Piero, Commented Dec 27, 2016 at 10:51

Avinash Raj · Accepted Answer · 2016-12-27 11:09:20Z

2

Use single regex with unnecessary capturing group removed.

str.replace(/([&?])(?:sessionid|parent_location)=[^&#]*(?=[&#]|$)/m, '$1')

DEMO

edited Dec 27, 2016 at 11:09

answered Dec 27, 2016 at 11:00

Avinash Raj

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2 Comments

Piero Over a year ago

Doesn't work with an ash tag http://...&parent_location=Test&abc=123&sessionid=q26bh6bkm8g49aeopem2obdm87igrsfe#abc/abc should remain: http://...&abc=123#abc/abc

Avinash Raj Over a year ago

just add # inside the first character class.. ie, [&?#]

Artsiom · Accepted Answer · 2016-12-27 10:56:32Z

0

You can add several .replace methods in a row.

var a = window.location.href
    .replace(/((.*)[&|?])(sessionid(=[^&]*))([&|#](.*))/, '$1$5')
    .replace(/*statement*/);

answered Dec 27, 2016 at 10:56

Artsiom

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