SOURCE

var closeDoorCommand = {
    execute:function(){
        console.log('close door')
    }
}

var openPcCommand= {
    execute:function(){
        console.log('open computer')
    }
}

var openQQCommand= {
    execute:function(){
        console.log('open QQ')
    }
}

var MacroCommand = function(){
    return {
        commandsList:[],
        add:function(command){
            this.commandsList.push(command)
        },
        execute:function(){
            for(var i=0,command;command = this.commandsList[i++];){
                command.execute();
            }
        }
    }
}

var macroCommand = MacroCommand();
macroCommand.add(closeDoorCommand)
macroCommand.add(openQQCommand)
macroCommand.add(openPcCommand)

macroCommand.execute()