The simplest and the best way to filter an array is to extend the Array.prototype as described here:

if (!Array.prototype.filter) {
    Array.prototype.filter = function (func) {
        var len = this.length;
        if (typeof func != "function")
            throw new TypeError();

        var res = new Array();
        var thisp = arguments\[1\];
        for (var i = 0; i < len; i++) {
            if (i in this) {
                var val = this\[i\];
                if (func.call(thisp, val, i, this))
                    res.push(val);
            }
        }

        return res;
    };
}

```Then let's filter on [titles](/2011/11/21/sorting-dates-in-javascript/ "See an example for Sorting with Titles"), which [start with](http://stackoverflow.com/questions/646628/javascript-startswith "See the solution for startsWith in javascript on Stackoverflow") "N":

function startsWithN(element, index, array) { return element.toLowerCase().indexOf(“n”) == 0; }

If you use jQuery, you don’t need it. But if you for some reason must use javascript you must beware of adding events. The most dangerous is window.onload. Consider this scenario:

function doSomethingGreat() {};
window.onload = doSomethingGreat;
```It works fine if you are the only person who writes window.onload handler. But on such platforms like SharePoint you can't know which events exist. And if you just write **window.onload = doSomethingGreat;** you override all other window.onload events. Again, in jQuery you have nothing to worry. jQuery(window).load(doSomethingGreat) will just add your event, not override. In this post I'll show how to extend an event handler the pure javascript way. We have to create our own function for adding event handlers. First the old events have to be temporary saved and then the new event has to be added. [Like this](http://jsfiddle.net/mirontoli/cnN6s/):

function addOnclick(elem, func) { var old = elem.onclick; if (typeof elem.onclick != ‘function’) { elem.onclick = func; } else { elem.onclick = function () { if (old) { old(); } func(); };
} }

To sort an array in javascript, just run sort():

array = \["skåne", "blekinge", "halland"\];
array.sort();
```To [perform a more intelligent sorting](http://stackoverflow.com/questions/3859239/sort-json-by-date "See the original answer in stackoverflow") we can define our sorting logic. What if an array has objects with different properties? For example, an object has title and lastupdated. We want to sort on lastupdated. Just create a function for this with two parameters:

function custom_sort(a, b) { return new Date(a.lastUpdated).getTime() - new Date(b.lastUpdated).getTime(); }

Google Analytics is a popular and mature tool for monitoring network activities on your site. Why not use it in Sharepoint? Dave Coleman and Mike Knowles provide good guides for doing that. There is a promising plugin to SP SPGoogleAnalytics which integrates both and provides an easy interface to put GA to your SharePoint installation and see the data directly on your intranet. It comes from codeplex: What do you think about spgoogleanalytics.codeplex? When I recently had to turn on Google Analytics on an intranet, I had no time for evaluating SPGoogleAnalytics, so I did the harder way: just put ga script in the end of a master page, just before ending </body> tag. But what if one has multiple masterpages? Is there a way to put GA in one step? Maybe a user control like Knowles suggests?

In order to be able to use subdomains for different sitecollections, we have to use hostheaders. Sharad Kumar provides a good example:

$w = Get-SPWebApplication http://sitename
New-SPSite http://www.contoso.com 
    -OwnerAlias "DOMAIN\\jdoe" -HostHeaderWebApplication $w 
    -Name "Contoso" -Template "STS#0"
```If we want to create, say http://rockets.contoso.com, we can run:

New-SPSite http://rockets.contoso.com -OwnerAlias “DOMAIN\jdoe” -HostHeaderWebApplication “http://sitename” -Name “Rockets” -Template “STS#0” -Language 1053

restart-service iisadmin

Twitter Bootstrap is awesome, based on less.js,  ust add this line in your html code:

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/1.3.0/bootstrap.min.css">

And your page looks already good. If you use css classes like btn label warning danger and much more, you get a right design directly out of the box. Now I want to test it in Sharepoint. Will it work? What do you think? jQuery Theme Roller. Another interesting resources are jQuery ThemeRoller. WebResources Depot:

Sometimes one may need more properties to track on a SPWeb beside Title and Description. One of the possibilities is to create a custom list (maybe a hidden one) with keys and values (Title and Value). It works fine. The good thing with it is also the possibility to change the key-value pair directly in the web interface. Another approach is to use web.Properties which is a Dictionary with key-values pairs. A simpler and neater solution: Here is a good motivation from the best sharepoint book Sharepoint as a Development Platform (p. 1043):

Javascript is very fast, responsive and unburdens the cpu at the server. Here I show a little example how to use jQuery.getJSON, jQuery.tmpl (wonderful plugin for rendering repeating data, repo hosted on Github) and REST-based service listdata.svc from /_layouts/_vti_bin/ folder. For this example I created a generic list “Contacts”, added two text fields Name and Phone. Add some phone numbers and try to go to /_vti_bin/ListData.svc/Contacts If you get 404-error, install a ADO.NET Data Services v1.5 CTP2, as described at dotnetmafia. If you want to know more about how to sort and filter, skip and limit results, read more at nothingbutsharepoint. If you encounter problems, follow Michaël’s blog post and download and install Windows6.1-KB976127-v6-x64.msu (if you have Windows Server 2008 R2), or NDP35SP1-KB976126-v2-x64.exe (if you have Windows Server 2008). After installing the version of the System.Data.Services.dll file is 3.5.30729.5004 (Windows Server 2008 R2), and 3.5.30729.4466 (Windows Server 2008). Allright, the remainder is pure javascript. In order to get it working you have to run the script from the same domain, meaning you can’t run javascript to retrieve the data from a html-file from your home folder. Create a webpart and add it to your page.

Well, if you need remove links to user profiles, you can iterate all td-elements with class ms-vb-user using jQuery each function and remove a elements. Here is a little script:

$(document).ready(function() {
	$(".ms-vb-user a").each(function() { 
	   var text = $(this).text(); 
	   var span = document.createElement("span"); 
	   var user = document.createTextNode(text); 
	   span.appendChild(user); 
	   var parent = $(this).parent()\[0\]; 
	   parent.removeChild(this); 
	   parent.appendChild(span); 
	});
});
```EDIT 2012-02-05 A much more better way to do it is [to use replaceWith in jQuery](http://stackoverflow.com/a/2409163/632117 "See a similar question and an answer on StackOverflow"):

$(".ms-vb-user a").each(function() { $(this).replaceWith(this.childNodes); });

html5 provides more types of inputs than the classic submit and text and a few more. Here you can see an example on fiddle