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Class Ext.DomHelper

Package:Ext
Defined In:DomHelper.js
Class:DomHelper
Extends:Object
Utility class for working with DOM and/or Templates. It transparently supports using HTML fragments or DOM.
This is an example, where an unordered list with 5 children items is appended to an existing element with id 'my-div':
var dh = Ext.DomHelper;
var list = dh.append('my-div', {
    id: 'my-ul', tag: 'ul', cls: 'my-list', children: [
        {tag: 'li', id: 'item0', html: 'List Item 0'},
        {tag: 'li', id: 'item1', html: 'List Item 1'},
        {tag: 'li', id: 'item2', html: 'List Item 2'},
        {tag: 'li', id: 'item3', html: 'List Item 3'},
        {tag: 'li', id: 'item4', html: 'List Item 4'}
    ]
});

Element creation specification parameters in this class may also be passed as an Array of specification objects. This can be used to insert multiple sibling nodes into an existing container very efficiently. For example, to add more list items to the example above:

dh.append('my-ul', [
    {tag: 'li', id: 'item5', html: 'List Item 5'},
    {tag: 'li', id: 'item6', html: 'List Item 6'} ]);

Element creation specification parameters may also be strings. If useDom is false, then the string is used as innerHTML. If useDom is true, a string specification results in the creation of a text node.

For more information and examples, see the original blog post.

This class is a singleton and cannot be created directly.

Public Properties

Property Defined By
  useDom : Boolean
True to force the use of DOM instead of html fragments
DomHelper

Public Methods

Method Defined By

Public Events

This class has no public events.