javascript - The listener and callback in Ext -


i'm new in ext, see codes in ext.onready(...)

tabitems.push({        id : 'schema-${form.schema.id}',     title : '${form.description}',     tabtip : '${form.description}',     tooltiptype: 'title',     xtype : 'ttpanel',     executescripts : true,     listeners : { load : initobjs, unload : unloadobjs, activate : ... },     autoload : { url : 'selection.do',             params : ...,             scripts : true,             callback : cb1         }     } );

my question is, of:

  1. "load:initobjs",
  2. "callback:cb1",
  3. page rendered , user can operate it,

which of these 3 runs first? why?

thanks million!


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