Kyauta Agogon Ƙidayar Baya
Ƙidaya baya zuwa kowace rana da lokaci. Saita kwanan wata na musamman ko yi amfani da zaɓuɓɓukan gaggawa (mintuna 5, 15, awa 1). Ba a bukatar rajista.
Ƙidaya gaggawa
Ƙirga baya har zuwa
Shawara: bar wannan shafin a buɗe don ƙararrawa ta iya yin sauti. Allo yana kasancewa a farke yayin aiki.
Saita agogo a sama ko zaɓi gaggawa, sannan danna Fara
Yadda Yake Aiki
Mai ƙidaya baya yana gudana gaba ɗaya a burauzarka babu dogaro na waje — babu ɗakunan karatu, babu kiran uwar garke. Yana amfani da setInterval na daƙiƙa 1 wanda yake lissafta gibin tsakanin Date.now() da tambarin lokaci na manufa da aka ajiye a kowace tik, don haka nunin yana ci gaba da daidaito ko da tab din ya tafi baya ko agogo na'urar ya canja.
- 1Saita manufaZaɓi yanayin tsawon lokaci (awoyi, minti, daƙiƙa) ko sauya zuwa yanayin kwanan wata/lokaci don ƙidaya baya zuwa wani lokaci na musamman. Maɓallan zaɓi biyar masu sauri (minti 5 zuwa awa 24) suna tsallake shigarwa gaba ɗaya kuma suna fara na'urar lokaci nan take.
- 2Tazara yana tikawa a kan manufa tsayayyeLokacin da aka fara, kayan aikin yana ajiye cikakkiyar manufa a matsayin abin Date kuma yana harba setInterval kowace 1000 ms. Kowace tik tana kiran Date.now() kuma tana cirewa daga manufa — don haka tik da suka rasa (tab yana barci, CPU yana aiki) suna gyara kansu a tik na gaba maimakon tara jinkiri.
- 3Nuni mai daidaitawa da yin madubi na tabNunin yana zubar da naúrorin sifili na jagora kai tsaye — na'urar lokaci na daƙiƙa 45 tana nuna daƙiƙa kawai a babban rubutu, yayin da na'urar lokaci ta kwanaki da yawa take nuna duk naúrori huɗu a ƙaramin girma. Ana kuma rubuta lokacin da ya rage zuwa document.title don ƙidayar baya ta ci gaba da karantawa a tab da aka ƙarantar ko a baya.
- 4Karar Web Audio a ƙarsheLokacin da ƙidayar baya ta kai sifili, Web Audio API na burauza da aka gina (AudioContext + OscillatorNode) yana haɗa karar sine-wave na 880 Hz sau uku — babu fayil na sauti da ake sauke shi. Ana sarrafa Dakata, ci gaba, da hanyoyin haɗi masu iya rabawa (yana ɓoye manufar epoch a #to= fragment, wanda ba ya taɓa isa uwar garke) gaba ɗaya a gefen abokin ciniki.
Kayan Aiki Masu Alaƙa
Mai Ƙididdige Shekaru
Ƙididdige ainihin shekarunka a shekaru, watanni, kwanaki, awanni, da jimillar kwanaki. Nemo alamar zodiac ɗinka da kwanakin da suka rage zuwa ranar haihuwarka ta gaba.
Mai Ƙididdige Bambancin Kwanan Wata
Ƙididdige ainihin bambanci tsakanin kwanaki biyu — shekaru, watanni, kwanaki, makonni, kwanakin aiki (ban da ranakun hutu), awanni, da mintuna.
Na'urar Lissafin Shekaru na Hijri
Lissafta shekarunka a kalandar Musulunci (Hijri / Umm al-Qura). Shigar da ranar haihuwa ta Miladiyya ko Hijri don ganin ainihin shekarunka na Hijri a shekaru, watanni da kwanaki, ranar da aka haife ka, da lissafin ranakun da suka rage har zuwa ranar haihuwarka ta Hijri mai zuwa. Kyauta, cikin sirri, kuma yana aiki gaba ɗaya a burauzarka.