Ext JS conflict with other scripts on the page

[kenorb]

I'm using Ext JS with OpenLayers for the map in Drupal, where user can select different WMS maps.
I'm including following JS files:
http://extjs.cachefly.net/ext-2.2.1/...xt/ext-base.js
http://extjs.cachefly.net/ext-2.2.1/ext-all.js
on every page where I've link with popup to the map widget.

Here is the demo:
http://46.137.100.142/inspire/2_0_0_2/searchmapwms.htm

After integrated with others scripts, some of the variables contain weird __proto__ function called remove() which cause JS syntax errors.

In example:
Following code works without problems:

    pairs = location.search.split("\?")[1].split("&");
    for (i in pairs) {
    
        keyval = pairs[i].split("=");
        
        if (keyval[0] == "easting" || keyval[0] == "ebl") 
            this.eastBndLon = parseFloat(keyval[1]);
        if (keyval[0] == "westing" || keyval[0] == "wbl") 
            this.westBndLon = parseFloat(keyval[1]);
        if (keyval[0] == "northing" || keyval[0] == "nbl") 
            this.northBndLat = parseFloat(keyval[1]);
        if (keyval[0] == "southing" || keyval[0] == "sbl") 
            this.southBndLat = parseFloat(keyval[1]);
        if (keyval[0] == "url" || keyval[0] == "u") 
            this.urls.push(decodeURIComponent(keyval[1]));
    }

But when I include Ext JS files, pairs contain somehow additional hidden function, which is counted as the last element of pairs, so code trying to execute:

pairs['remove'].split("=");

which is wrong.

Another example:

    for (var n in userFlags) {
      var flagInfo = userFlags[n].match(/(\w+)_(\d+)/);
      var flagName = flagInfo[1];
      var contentId = flagInfo[2];
      // User flags always default to off and the JavaScript toggles them on.
      if (templates[flagName + '_' + contentId]) {
        $('.flag-' + flagName.flagNameToCSS() + '-' + contentId, context).after(templates[flagName + '_' + contentId]).remove();
      }
    }

userFlags contain 1 element, but has this weird function remove(). In Chrome Inspector you can't see that this object contain 2 elements, only in Firebug if you eventually analyse it more deeply.
And this code breaks with error:
Uncaught TypeError: Object function ({var A=this.indexOf(;if(A!=-1){this.splice(A,1)}return this} has no method 'match'
because last element of userFlags contains proto function:

remove: function (B){var A=this.indexOf(B);if(A!=-1){...

See the screenshot fo details.

[kenorb]

Duplicate:
http://www.sencha.com/forum/showthre...f-Array.remove

[mystix]

and my answer is still the same as it was 3 years ago
http://www.sencha.com/forum/showthre...l=1#post181372

Why don't you just use a traditional for loop?