The joys of people using valueForKey to get objects out of a dictionary.
The joys of people using valueForKey to get objects out of a dictionary.
- Subject: The joys of people using valueForKey to get objects out of a dictionary.
- From: Alex Zavatone <email@hidden>
- Date: Tue, 10 Nov 2015 11:32:51 -0500
- X_v_e_cd: 514e1db90a4f165843f9e7f1711b17df
- X_v_r_cd: 1b72e56d73b7d2470dc574b4a0f4d683
It's been about 4 or 5 years since I made this mistake but I've just seen a massive swath of code where every access of a dictionary object is using valueForKey instead of objectForKey.
I've got a few examples of why this is a "really bad idea"™, and certainly might explain why lots of that code is wrapped in try/catch blocks.
Am I correct that using valueForKey will raise an exception if the key is missing?
Looking for reasons why I can explain "yeah, I know it works, but here's why it's a terrible idea to use to access a dictionary's objects".
Thanks in advance.
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