Search and remove a parameter with optional character from URL

Question

I'm looking to remove a parameter from a URL with a click event. The issue is that the parameter can either have an & before it or not. So the form is either search=MYSEARCHTERM or &search=MYSEARCHTERM.

I have the following which appears to work fine for one or other but not both. I was thinking that I could have an if / else statement one of which contains something like this. (Excuse the crappy regex but I've never written it before)

var searchKeywordRegx = new RegExp(/(?:&)/ + 'search=' + searchKeyword);

$('.searchKeyword').click(function() {
    $(this).remove();
    var searchKeywordRegx = new RegExp('search=' + searchKeyword);
    console.log(searchKeywordRegx);
    document.location.href = String( document.location.href ).replace(searchKeywordRegx , "" );
});

Am I way off base here?

Barmar · Accepted Answer · 2017-06-12 21:41:56Z

2

Use ? to make something optional in a regexp:

var searchKeywordRegx = new RegExp('&?search=' + searchKeyword);

answered Jun 12, 2017 at 21:41

Barmar

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1 Comment

LMG Over a year ago

Ah! so simple. Thanks

KevBot · Accepted Answer · 2017-06-12 21:45:18Z

1

Seems you can do this without regular expressions. If you simply remove that portion of the document location's "search":

document.location.search = document.location.search
    .replace('search=' + encodeURI(searchKeyword), '');

answered Jun 12, 2017 at 21:45

KevBot

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3 Comments

LMG Over a year ago

I'm heard of encodeURI but I'm not familiar with it. I'll have to check it out. Thanks.

KevBot Over a year ago

@LMG, I'm using encodeURI because it will ensure that the values have proper encoded strings. For example, if the string was search=testing this (with the space), then what is in the URL is search=testing%20this. So encodeURI makes sure that the value you pass to it will match how it would look in a URL.

LMG Over a year ago

Thanks for the clarification.

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