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@norman70688 yes. Particularly when you expect that something is well designed and actually it's not
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@norman70688 I agree, but in some languages (like Java) null is a valid member of the string type
This is the most wtf thing that happened me with Javascript, I had a regular expression and it caused bugs only with 4 digits long words, then I just noticed this:
/^.{3}$/.test(null) // false
/^.{4}$/.test(null) // true
What the fuck, I can't believe that who designed the .test method didn't think to avoid null coercion
rant