Can I detect unused extra parameters passed to javascript methods?
- by Pablojim
In Javascript I can call any method with more than the necessary amount of parameters and the extra parameters are silently ignored.
e.g.
letters = ['a','b','c']
//correct
letters.indexOf('a')
//This also works without error or warning
letters.indexOf('a', "blah", "ignore me", 38)
Are there ways to detect cases where this occurs?
My motivation is that in my experience cases where this occurs are usually bugs. Identification of these by code analysis or at runtime would help track these errors down.
These cases are especially prevalent where people are expecting alterations to base types which may not have occurred. Logging a warning where this happens
e.g.
Date.parse('02--12--2012', 'dd--MM--YYYY')
Notes:
To be clear I would like a solution that doesn't involve me sprinkling checks all over my code and other peoples' code.
