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Thread: [HELP] Understanding createCallback

  1. #1
    Sencha User Phunky's Avatar
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    Default [HELP] Understanding createCallback

    I'm trying to get my head around createCallback but i'm getting a bit confused with it, i've assumed that it is possible to use createCallback to apply a callback to ANY function you create?

    So the following is how i think it works?

    Code:
    function shout(msg){
     Ext.Msg.alert('ALERT!', msg);
    }
    
    function run(){
     ds.load();
     ds.on('load', function(){ds.getAt(0)})
    }
    
    run().createCallback(shout('I wish i understood this'))
    Am i correct? or way off the mark?!

  2. #2
    Sencha - Community Support Team Condor's Avatar
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    Default

    Try:

    Code:
    function shout(msg){
     Ext.Msg.alert('ALERT!', msg);
    }
    
    function run(fn){
     ds.on('load', fn, null, {single:true});
     ds.load();
    }
    
    run(shout.createCallback('I wish i understood this'));

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