• Victoria
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          33 days ago

          Indeed, the unary plus operator tries to convert whatever is after it to a number if it isn’t already. Since ‘a’ is not a valid number, it returns NaN (not a number)

      • propter_hog [any, any]
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        3 days ago

        ‘a’ + +

        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”.