jQuery conflict with native prototype

Question

I have a problem using jQuery with native JavaScript (NOT prototype.js). When using the following code, jQuery 1.9.1 with an error message:

Answer 1

You can avoid these problems by making your extensions to the native prototypes as non-enumerable:

Object.defineProperty(Object.prototype, 'myVeryGreatFunction',{
  value : function() {},
  enumerable : false
});

Object.defineProperty documentation on MDN

As Jan Dvorak mentioned, this solution does not work for old browsers (IE8-).