Create Folder in list/library using Ecmascript/Javascript client object model

In response to the Forum post Here I have written a quick example of how to add a folder in a list using Ecmascript/Javascript client object model in SharePoint 2010.
You can add this script in a CEWP for testing purposes. In the below script Replace “ListName” with your list or library name and “NewFolder” with whatever you want to call your folder.

<script type=”text/javascript”>

var currentcontext = null;

var currentweb = null;

ExecuteOrDelayUntilScriptLoaded(AddFolder, “sp.js”);

function AddFolder()
{

currentcontext = new SP.ClientContext.get_current();

currentweb = currentcontext.get_web();

this.list = currentweb.get_lists().getByTitle(“ListName“);

var listItemCreationInfo = new SP.ListItemCreationInformation();

listItemCreationInfo.set_underlyingObjectType(SP.FileSystemObjectType.folder);

listItemCreationInfo.set_leafName(‘NewFolder‘);

var newItem = list.addItem(listItemCreationInfo);

newItem.update();

currentcontext.load(currentweb);

currentcontext.load(list);

currentcontext.executeQueryAsync(Function.createDelegate(this, this.ExecuteOnSuccess),
Function.createDelegate(this, this.ExecuteOnFailure));

}

function ExecuteOnSuccess(sender, args) {
SP.UI.Notify.addNotification(‘Folder created successfully’, false);
}

function ExecuteOnFailure(sender, args) {
alert(“Error in Script”);
}
</script>