Javascript documentation on getParameterByName?

Question

I can't seem to find any detailed documentation on getParameterByName(). I've searched Mozilla, Google, and here. Am I missing something?

It's a function and I read it wrong. I was trying to see how to collect information from a query string. — Dandy, Feb 29 '12 at 15:22
This is what you may be looking for: http://stackoverflow.com/questions/901115/how-can-i-get-query-string-values-in-javascript — Chance Smith, Sep 10 '15 at 19:38

score 16 · Answer 1 · answered Jun 13 '13 at 11:30

We use this where I work. Similar to ThiefMaster's solution...

function getParameterByName( name ){
  name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
  var regexS = "[\\?&]"+name+"=([^&#]*)";
  var regex = new RegExp( regexS );
  var results = regex.exec( window.location.href );
  if( results == null )
    return "";
  else
    return decodeURIComponent(results[1].replace(/\+/g, " "));
}

score 8 · Accepted Answer · edited May 23 '17 at 12:08

8

There is no builtin function with this name.

Have a look at How can I get query string values in JavaScript? though - maybe that's the function you are looking for. It returns the querystring parameter with a given name.

edited May 23 '17 at 12:08

Community

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answered Feb 29 '12 at 15:17

ThiefMaster

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score 3 · Answer 3 · answered Aug 03 '15 at 13:27

You need to add validation of name is not null/undefined

function getParameterByName(name) {
    if (name !== "" && name !== null && name != undefined) {
        name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
        var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
            results = regex.exec(location.search);
        return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
    } else {
        var arr = location.href.split("/");
        return arr[arr.length - 1];
    }

}

score 0 · Answer 4 · answered Feb 29 '12 at 15:18

0

because it does not exists. I think you want to look at : getElementsByTagName ? if not provide more information of what kind of method you search

answered Feb 29 '12 at 15:18

Jerome Cance

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Javascript documentation on getParameterByName?

4 Answers4