Make a JavaScript array from URL

I need to make a Javascript array from URL, eg:

turn this:

http://maps.google.com/maps/api/staticmap?center=Baker Street 221b, London&size=450x450&markers=Baker Street 221b, London&sensor=false

Into something like:

array['center'] = Baker Street 221b, London
array['size'] = 450x450
// and so on...

I need to make this serializaion/unserialization work both ways (url to array and array to the part of the url). Are there some built-in functions that do this?

Thanks in advance!

Answers


URL to array: (adapted from my answer here)

function URLToArray(url) {
    var request = {};
    var pairs = url.substring(url.indexOf('?') + 1).split('&');
    for (var i = 0; i < pairs.length; i++) {
        if(!pairs[i])
            continue;
        var pair = pairs[i].split('=');
        request[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
     }
     return request;
}

Array to URL:

function ArrayToURL(array) {
  var pairs = [];
  for (var key in array)
    if (array.hasOwnProperty(key))

      pairs.push(encodeURIComponent(key) + '=' + encodeURIComponent(array[key]));
  return pairs.join('&');
}

the above function URLToArray is not working when url string has elem[]=23&elem[]=56.. see below the adapted function... hope it is working - not 100% tested

function URLToArray(url) {
        var request = {};
        var arr = [];
        var pairs = url.substring(url.indexOf('?') + 1).split('&');
        for (var i = 0; i < pairs.length; i++) {
          var pair = pairs[i].split('=');

          //check we have an array here - add array numeric indexes so the key elem[] is not identical.
          if(endsWith(decodeURIComponent(pair[0]), '[]') ) {
              var arrName = decodeURIComponent(pair[0]).substring(0, decodeURIComponent(pair[0]).length - 2);
              if(!(arrName in arr)) {
                  arr.push(arrName);
                  arr[arrName] = [];
              }

              arr[arrName].push(decodeURIComponent(pair[1]));
              request[arrName] = arr[arrName];
          } else {
            request[decodeURIComponent(pair[0])] = decodeURIComponent(pair[1]);
          }
        }
        return request;
    }

where endWith is taken from here

function endsWith(str, suffix) {
    return str.indexOf(suffix, str.length - suffix.length) !== -1;
}

There's the query-object jQuery plugin for that


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