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Revision: 52454
at October 30, 2011 10:28 by ultranaut
Updated Code 
var q = 'foo=1&blah=a&foo=2&foo=3&blah=b'

function compress(data){
    var q = {}, ret = '';
    data.replace(/([^=&]+)=([^&]*)/g, function(m, key, value){
        q[key] = (q[key] ? q[key] + ',' : '') + value;
    });
    for ( var key in q )
        ret = (ret ? ret + '&' : '') + key + '=' + q[key];
    return ret;
}

console.log(compress(q))

Revision: 52453
at October 24, 2011 05:48 by ultranaut
Initial Code 
var q = ['foo', 'bar', 'baz'],
    ret = '';
for (string in q) 
  if (q.hasOwnProperty(string))
    ret = (ret ? ret + "," : "") + string;

console.log(ret);
Initial URL 
http://ejohn.org/blog/search-and-dont-replace/
Initial Description 
two awesome bits: using ''.replace() perform an action (other than replacing it) on some text, and a simple way to concatenate strings with a separator (retardedly simple but it always confuses me)
Initial Title 
Search and don\'t replace
Initial Tags 
javascript, replace
Initial Language 
JavaScript