Eloquently sums up my feelings about the disadvantages of dynamic typing

[deadalnix]

On Wednesday, 16 October 2013 at 20:00:45 UTC, Walter Bright 
wrote:
> On 10/16/2013 8:37 AM, Sean Kelly wrote:
>> I'm reasonably okay with dynamic languages so long as you can 
>> require a
>> variable to be declared before it's used.  Those that 
>> implicitly declare on
>> first assignment are a nightmare however. I once spent an 
>> entire day
>> debugging a Lua app that turned out to be broken because of a 
>> typo in an
>> assignment. Never again.
>
> Implicit declaration is such a bad idea; I wonder why it keeps 
> reappearing in every new dynamic language du jour.

Kind of like null : it is easy to implement.