/ext-4.1.0_b3/docs/extjs/examples/form/number.js

Ext.require('Ext.form.*');

Ext.onReady(function() {
    Ext.createWidget('form', {
        renderTo: 'example-form',
        title: 'Number fields with spinner',
        bodyPadding: 5,
        frame: true,
        width: 340,
        fieldDefaults: {
            labelAlign: 'left',
            labelWidth: 105,
            anchor: '100%'
        },
        items: [{
                xtype: 'numberfield',
                fieldLabel: 'Default',
                name: 'basic',
                value: 1,
                minValue: 1,
                maxValue: 125
            },{
                xtype: 'numberfield',
                fieldLabel: 'With a step of 0.4',
                name: 'test',
                minValue: -100,
                maxValue: 100,
                allowDecimals: true,
                decimalPrecision: 1,
                step: 0.4
            },{
                xtype: 'numberfield',
                hideTrigger: true,
                fieldLabel: 'Without spinner',
                name: 'without_spinner'
            }]

    });
});