append a method to an already existing class in javascript
Array.prototype.newMethod = function() {}
/* - Replace "Array" with your Class name -
Typing the name of your Class in the console
won't show the newly added method.
Only by appending .prototype to the class name
you will see the new method appended to the class, in its definition.
The technique is also called Monkey Patching and is
NOT recommended, for the reasons outlined in the source link*/
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