Ko te tino wātea Ka whakatū i te UUID
Ka whakaputa i ngā UUID v4 ā-whakahaere-ā-whakahaere i te nui - te tau matua me ngā kōwhiringa kore-pātahi.
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He pēhea te mahi
- Hiko tētahi tatauranga. E tāuru ana i te maha o ngā UUID e hiahiatia ana e koe (1 ki te 1000).
- Whakatū. Ka puta teretia rātau, kotahia raina, e noho tata ana ki te tārua.
- Kohia rātau. Ka whakamahia tuatahitia te tārua katoa, te hanga rānei i roto i ngā kōwhiringa hōhonu.
Mo tēnei utauta
Whakana te putanga-4 UUIDs - ko ngā tohu 128-biti tākaro e whakamahia ana mō ngā kī pātengi, ngā tohu tono, ngā ingoa faila me ētahi atu mea e hiahiatia ana kia motuhake, kāore i te pūkete pūtahi. Ko te kōwhiringa he maha e hiahiatia ana, ā, ka puta mai rātau i te wā kotahi, i hangaia ki te pūtake tākaro o tō tātou kaitiaki (ehara i te Math.random pōturi i te wā e wātea ana te API haumaru). Ka whakaaetia e ngā kōwhiringa hōhonu kia tino nui rātau, kia whakawātea rānei i ngā whakahua mō ngā pūnaha e hiahiatia ana he āhua tohu 32-karaehe.
He aha te whakamahinga o te tangata mo ia
- Ka waihanga i tētahi pūtake raraunga motuhake, kī matua rānei
- Whakatū i ngā tono/whakataurite mō ngā pūkete
- Ka waihanga tētahi pūrere motuhake, he ingoa mea rānei
- Ko ngā tohu whakamātautau i hangaia ki te nui
Ko nga pātai e pā ana
Waihoki 4 - ā-pāpāho. E hiahiatia ana e te nuinga o ngā take whakamahi UUID te v4 nā te mea kāore e hiahiatia he whakahoahoa, ā, kāore e mau i ngā mōhiohio mīhini, wā rānei.
Ka whakamahia e rātau te pūwhakahaere pūwhakahaere crypto.randomUUID / getRandomValues i reira e wātea ana, he kaha te pūwhakahaere, me te Math.random i runga i ngā pūwhakahaere tawhito anake.
Kāore. Ka hangaia rātau ki te paetata i roto i tōmu kaitiaki, nā reira kāore he mea tuku, kāore rānei i te tiaki.
He kore noa iho. He 122 ngā ira matapōkere te v4 UUID; me whakawhanake atu e koe i ngā miriona i mua i te tūkinotanga.
Hei - Ka whakatuwheratia ngā kōwhiringa Tiketike ki te whakawhānui i a rātou, ka tangohia rānei ngā whakahua mo te āhua o te āhua o te 32-karaehe e hiahiatia ana e ētahi pūnaha.
Tae atu ki te 1000 i ia kaitiaki. Mō ētahi atu, whakawhanake i roto i ngā rōpū me te tārua i ia tautuhi.
He - He tino wāteatanga te UUID Generator, kāore he tohu wai i te huaputa, ā, kāore he kāri ā-pūtea e hiahiatia ana.
He. Ka haere i roto i tōna kaitiaki, nā reira ka mahi te UUID Generator i runga i ngā pūkoro me ngā tātaitai, tae atu ki te papamuri - kāore he taupānga hei whakatū.
Kāore. Ka mahi te UUID Generator me te kore whakaingoatanga; he pūkete wātea noa iho te tīariari hei whakawātea i ngā tepe whakamahi nui ake.
Ko te nuinga o te wā he rua neke atu i te rua mō tētahi pūranga pūnoa - ka tīmata te Pūnga UUID ki te mahi i te wā e hoatu ana e koe tōna tāuru.