Question

I’m not a javascript guru. I’ve got the following code below:

var aCookieValues = sCookieContentString.split('&'); // split out each set of key/value pairs
var aCookieNameValuePairs = aCookieValues.split('='); // return an array of each key/value

What I’m trying to do is split the first string via & and then create another array that takes the first array and splits it further via the = character that exists in every value in the aCookieValues array

I get the error aCookieValues.split is not a function.

I’ve seen an example that basically does the same thing but the second time this guy is using a loop:

(http://seattlesoftware.wordpress.com/2008/01/16/javascript-query-string/)

    // '&' seperates key/value pairs
    var pairs = querystring.split("&");

    // Load the key/values of the return collection  
    for (var i = 0; i < pairs.length; i++) {
        var keyValuePair = pairs[i].split("=");
        queryStringDictionary[keyValuePair[0]] = keyValuePair[1];
    }

Ultimately what I’m trying to achieve here is a final dictionary with key/value pairs based off the ‘=’ split. I’m simply trying to split up a cookie’s values and shove it into a nice dictionary so I can then get certain values out of that dictionary later on.

Answer 1

You are getting this error because aCookieValues is an array, and it does not have a split method. You would need to call the split method on each element of aCookieValues:

var aCookieValues = sCookieContentString.split('&');

for (var i = 0; i < aCookieValues.length; i++) {
   var aCookieNameValuePairs = aCookieValues[i].split('=');

   // Handle aCookieNameValuePairs[0] as the key
   // Handle aCookieNameValuePairs[1] as the value
}

To shove everything in your nice dictionary, simply declare it before the for loop: var myDict = {}, and then put the following after the split('=') call:

myDict[aCookieNameValuePairs[0]] = aCookieNameValuePairs[1];

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EDIT: Which, after reading your question properly, is the same method used in the code snippet you supplied. I hope at least this explains how that works 🙂