よ as enders in interrogative sentences (as in どうなのよ)


I was watching a Japanese drama earlier and one of the characters said
どうなのよ〜最近しょうご (name) .

My question is よ normally used as sentence ender even for interrogative
sentences? And what kind of nuance does it have?

note: the speaker is a woman, I've read somewhere that it has something to do
with women's language?...




よ works to convey strong emotion here. よ + a question works here like the
English equivalents of !?, ?! etc. These are together called the Interrobang
(for more information please look at
<https://en.wikipedia.org/wiki/Interrobang>)

Edit: I asked an expert and this is their explanation

'This if i remember correctly Is the explanatory particle. の here is making it
more like they speaker wants an explanation or are explaining something. Same
with ん except for んです and んだ are a less formal. Here's an article on it since
i had the same question not too long ago this helped me
<https://www.tofugu.com/japanese-grammar/explanatory-nda-ndesu-noda-nodesu/>

And as far as i know that の without です or だ is just s more casual way of
putting it but the の still applied the same way so it is like a のですor んです And
i think ね acts to soften the tone'

You can check that article to clarify your doubt

