Sunday, February 12, 2012

How to add a param to a URL that trigger jQuery to run a function on load


Is there a way to add a url param like: http://site.com?open=true



And on document ready, if jQuery sees the open param set to true execute a function?



Thanks

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3 comments:

  1. UserFebruary 12, 2012 at 11:59 PM

    first lets make a good Query string searcher in JS

    function querySt(qsName, url)
    {
    var theUrl;
    if (url == null || url == undefined)
    theUrl = window.location.search.substring(1); else theUrl = url;
    var g = theUrl.split("&");
    for (var i = 0; i < g.length; i++) {
    var pair = g[i].split("=");
    if (pair[0].toLowerCase() == qsName.toLowerCase())
    {
    return pair[1];
    }
    }
    return null;
    }



    $(function (){
    if (querySt("open")!='true') return;

    });

    ReplyDelete
  2. UserFebruary 12, 2012 at 11:59 PM

    taken from website http://www.onlineaspect.com/2009/06/10/reading-get-variables-with-javascript/


    function $_GET(q,s) {
    s = s ? s : window.location.search;
    var re = new RegExp('&'+q+'(?:=([^&]*))?(?=&|$)','i');
    return (s=s.replace(/^?/,'&').match(re)) ? (typeof s[1] == 'undefined' ? '' : decodeURIComponent(s[1])) : undefined;
    }

    ReplyDelete
  3. UserFebruary 12, 2012 at 11:59 PM

    You can test location.href with a regex:

    if (location.href.match(/open=true/)
    // do something


    You might want to work on the regex though, to make sure it works for you.

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