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Editorial Team
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Asked: 2026-06-05T15:59:52+00:00

im having a hard time learning ExtJS. inspite of the fact that almost everywhere

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im having a hard time learning ExtJS. inspite of the fact that almost everywhere it was mentioned that it was the easiest compared to others like DOJO.
what iam trying to create is a simple tree (NO MVC.. just a simple tree).
heres my javascript code..

 Ext.create('Ext.tree.Panel', {
            renderTo: Ext.getBody(),
            title: 'Simple Tree',
            width: 150,
            height: 150,
            root: {
                text: 'Root',
                expanded: true,
                children: [
                    {
                        text: 'Child 1',
                        leaf: true
                    },
                    {
                        text: 'Child 2',
                        leaf: true
                    },
                    {
                        text: 'Child 3',
                        expanded: true,
                        children: [
                            {
                                text: 'Grandchild',
                                leaf: true
                            }
                        ]
                    }
                ]
            }
        });

and only something like a panel is being rendered on the body.
html is this

<body>
    <div>

    </div>
</body>

what am i doing wrong?
UPDATE:-
1.whole of the javascript here is placed in the page after the body tag.
2. im including bootstrap.js jsvascript file that is bundeled with ExtJS download.

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1 Answer

  1. Editorial Team

    Ext.create() function should have been called inside Ext.onReady() otherwise some elemnts are rendered and others are not

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