Vaqtni ss:mm yoki ss-mm sifatida toping

darsga qaytish

Vaqt soat: daqiqa yoki soat-daqiqa formatida bo’lishi mumkin. Har ikkala soat va daqiqada 2 ta raqam mavjud: 09:00 yoki 21-30.

Vaqtni topish uchun regexp yozing:

          let regexp = /your regexp/g;
alert("Breakfast at 09:00. Dinner at 21-30".match(regexp)); // 09:00, 21-30
        

P.S. Ushbu vazifada biz vaqt har doim to’g’ri deb hisoblaymiz, “45:67” kabi yomon satrlarni filtrlashning hojati yo’q. Keyinchalik bu bilan ham shug’ullanamiz.

Javob: \d\d[-:]\d\d.

let regexp = /\d\d[-:]\d\d/g;
alert("Breakfast at 09:00. Dinner at 21-30".match(regexp)); // 09:00, 21-30

Esda tutingki, '-' tire kvadrat qavs ichida alohida ma’noga ega, lekin faqat boshqa belgilar orasida, u boshida yoki oxirida bo’lganda emas, shuning uchun biz undan qochishimiz shart emas.