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var myNumber = 10;

var logStuff = function(adder, multiplier){
    // `this` is myNumber because we bound it.
    var sum = this + adder;
    var product = this * multiplier;
    $('log').set('text', 'sum: ' + sum + ', product: ' + product);
};
    
logStuff.delay(2000, myNumber, [10,3]);