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JavaScript
(lemmy.ml)
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this post was submitted on 04 Jun 2025
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This part is the same as writing
'a'++and that returns "NaN" (short for "not a number") since you can't increment a character, but this return type is a string, so the interpreter just concatenates it with the other letters:baNaNa. Then that string is converted to lower case to give the final result, "banana".The space makes that two different tokens, in reality what happens is 'a' + (+'a') that resolves to 'a' + 'NaN'.
Yep, I believe you're right
Ironically
'a'++works in C/C++ because'a'ischarwhere in JS 'a' isstring.