This snippet extracts data from the previous electronic medical record (https://karte.medley.life/*; select=ifneeded; selector=.KlxeCpDfqdtdJcyXPd0h > :nth-child(2) article div) In some cases, there may be no previous medical record (e.g., for a first visit). In that case, an error is returned.
I want to run the snippet only if there is a previous medical record.
How can I do this?
{p_record={site: text; page=https://karte.medley.life/*; select=ifneeded; selector=.KlxeCpDfqdtdJcyXPd0h > :nth-child(2) article div}}{bmi_measure=testregex({=p_record}, "身長") and testregex({=p_record}, "体重")}{if: bmi_measure}{run: `身長`=extractregex(p_record, "身長\D{0,8}([0-9]{1,5}(?:\.[0-9]{1,2})?)", "i")}{run: `体重`=extractregex(p_record, "体重\D{0,8}([0-9]{1,5}(?:\.[0-9]{1,2})?)", "i")}{endif}