prototype example

gistfile1.txt

function Chart(){
    console.log('Yo new chart created');

    this.nonPrototypeFunc = function(){ console.log('oh no'); };

    return this;
}

Chart.prototype.doStuff = function doStuff(){
    console.log('Doing stuff. this context: ', this);
    return this;
}

var chart1 = new Chart();
var chart2 = new Chart();

console.log('Prototype funcs are same reference to func in memory: Are they the same?', chart1.doStuff === chart2.doStuff);
console.log('Non Prototype funcs are individual function objects. Are they the same?: ', chart1.nonPrototypeFunc === chart2.nonPrototypeFunc);