Smalltalk createPackage: 'HelloApp'! Object subclass: #Hello instanceVariableNames: '' package: 'HelloApp'! !Hello methodsFor: 'not yet classified'! begin "Makes me say hello to the user." | msg button | msg := 'Hello world!!'. button := '#sayHello' asJQuery. button click: [button after: '
' , msg , '
']. ! !