Before writing your own, it is helpful to understand the plugins Sencha provides by default. These are often used to handle complex interactions within ExtJS grids and forms:
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| Plugin | Purpose | |--------|---------| | Ext.form.FieldSet (not a plugin) | – | | Ext.form.action.StandardSubmit | Submit form as standard browser POST | | Ext.plugin.Clearable | Add clear icon to text fields | | Ext.form.plugin.FieldLabels | Advanced label management | extjs plugins