Cannot read property 'validation' of undefined

[dongmai]

node-form-validate/lib/Validator.js

Line 348 in b10f2df

for(var field in this._appliedValidations)

Hi, I got the error Cannot read property 'validation' of undefined at the line above.
This is caused by I've added a new function to Array via Array.prototype.my_function so when looping through this._appliedValidations there is one case that field = 'my_function' so it crash there.

Please take a look.
Thanks.