や否や

From や (ya, “upon; and”) applied to both the previous statement and 否(いな) (ina, “no”).

• (Tokyo) やいなや [yà ínáꜜ yà] (Nakadaka – [3])
• IPA^(key): [ja̠ ina̠ ja̠]

や否(いな)や • (ya ina ya) 

1. as soon as

   彼(かれ)が教(きょう)室(しつ)に入(はい)るや否(いな)や、みんなが立(た)ち上(あ)がった。

   Kare ga kyōshitsu ni hairu ya ina ya, minna ga tachiagatta.

   No sooner had he entered the classroom than everyone stood up.

2. whether, if

   Synonym: かどうか (ka dou ka)

   その事(じ)件(けん)に関(かん)連(れん)して記(き)者(しゃ)達(たち)は首(しゅ)相(しょう)に辞(じ)任(にん)する意(い)思(し)があるや否(いな)や尋(たず)ねた。

   Sono jiken ni kanren shite kishatachi wa shushō ni jinin suru ishi ga aru ya ina ya tazuneta.

   In connection with the incident, the reporters asked the Prime Minister whether he intended to resign.