JavaScript: take pana - kōwhiringa kōwhiringa

Ko nga wa katoa te take te taua, he pea nga uara te rota. tumuaki tuarua ranei hurihia: ka waiho kotahi uara maha ngā take mo tona takanga. I roto i tetahi take, i runga i etahi tikanga rānei Me ki te tango i tetahi anake otinga, hurihia ranei.

Ahakoa, ki te kia whai i te whakatau e rave rahi kōwhiringa mō e arahi tetahi whakaaro kotahi anake te ara, engari te nuinga o te maha ngā huarahi, a ka hiahia tatou ki te hanga i te whiriwhiri.

Classic tauākī herenga ki te (huru) {1 hātepe, ki te he pono te huru} atu {2 hātepe, ki te he teka te huru} homai e rua anake kōwhiringa. Otiia ara he wero tūturu ohie homai tonu he rota o kōwhiringa.

He kuware "kahore tetahi", engari kotahi huru

JavaScript Hoahoa, whakawhiti take = uara maha tikanga. Ka taea te whiwhi mā te whakamahi i te rite Ki te nga ngā kaiwhakahaere. Heoi, wenerau, te whakatinanatanga tuatahi o syntactically me semantically atu tika. I tua atu, ka rapua e te whakatau ōkawa i runga i te putanga tuarua atu pūkenga Developer:

He huinga ki te (...) {...} {...} me te tamata {...} cath atu (...) {...} whakarato runga tukanga AJAX-utu i roto i te hātepe. whakamana tukatuka urupare te huinga rite o tauākī herenga.

JavaScript take whakakā: he tauira

Ko te rerekētanga matua waho tīpako i te kōwhiringa i kotahi huru: e kore koutou e taea e tuhituhi e rua, me te torutoru poraka o whakahau whakamahi. Ka mahi i te reira i kotahi anake ranei te torutoru anake.

Hanganga J avaScript take pana taea ki te whakarato i te plurality o hātepe i runga i te uara o te tāupe te kīanga ranei rānei. He mea nui ki te mau i roto i te ngakau e ka hanga te whiriwhiri tika o te hātepe i runga i te tukinga tangohia i roto i ngā o te whakakā uara () me te uara o te mea kua kī i roto i te take. Ko te "1" me te maha 1 - tenei momo faafariuraa e kore e hanga i konei e kore ko te taua.

Mahi wāhanga maha

He āhuatanga āhuatanga o te kōwhiringa hoahoa J avaScript take pana ko te ngaro o taiapa poraka - {...} tukua ki te tautuhi i anake te timatanga me te mutunga o te tinana kaiwhakahaere. Aukatihia ai ia wāhanga take whati operator, e kore ai e waiho.

I roto i teie mau hi'oraa Pekepeke ana break i roto i te wāhanga take tuatahi. Kōwhiringa i runga i te maui ka hoatu te hua Variant2, no te mea he reira konei e haamata te mahia, a i roto i te ahua o te tika ka kia riro Variant1Variant2, rite te meatanga ki e te tuatahi, engari kahore he pānga ko te rua o nga huru, a haunga, kahore ārai ki te mahia tauākī o te wāhanga tuatahi, ka tuarua, i waenganui ia ratou i reira he kahore i matao operator, engari e kore take pana rua JavaScript e. Me kï reira e kore e te huringa i roto i te iCond tāupe i roto i te hanganga tinana hoatu tetahi pānga.

Te waehere he mooni, me te parau mau o te raruraru

JavaScript - te reo o te nui, tere, poto me te arorau ki te wetereo whakamahia. mahi maitai JavaScript hoahoa take pana, tuku whakaahuatanga mārama me te tika o te momo e hiahiatia ana o kōwhiringa i runga i nga tikanga motuhake.

kia whakaurua kōwhiringa kaiwhakahaere ki tetahi ki tetahi. I roto i te take o te wāhanga kia tauākī herenga, koropiko, tetahi atu hanganga. E kore e tatou whakarerea e te hōkai o taurangi. Ka rite ki te whakamahia nga wahi katoa e whakaahuatia reira te ao.

Heoi, e kore kia tukino hoki reira JavaScript. take Whakawhiti - he peka taputapu nui, engari i roto i te waehere pūkoro tiketike-rōrahi kore. Ko te whānuitanga whakaaro, me te mahi o ngā kōwhiringa faaohipa, ka puta ke ai e muri i te atu uaua.

E kore e te wero tūturu tu tonu, a ki te kahore e tangohia e koe ki huringa pūkete i roto i te akoranga o tona whakatau, e mai ki te otinga o te mahi, i roto i nga ra tuatahi o te mahi waihanga, ka waiho i te rauemi haupūtanga kitea me awerenga. Ko te wero, o te akoranga, ka haere atu, a ka whai i te pae ki te kia oti.

Mai i tenei tirohanga, te rerekētanga matua o te take whakawhiti JavaScript ahu i tona rahi me te whīwhiwhi. Ki te kore e kino koutou i te reira, ka taea e koe te whakatutuki ki te hanga i te mau ma'itiraa kiato, me te iti.

Herenga + otinga = kaupapa a tawhio hou

raruraru tika whakatakoto tata ki te otinga. Ahakoa te raruraru, ko te, i whakamāramatanga, ano e taea e kore whakaoti tetahi, me topa.

whakamahia te huru te mau vahi atoa (tūmataiti mahi iti). tikanga o te mahi = mahi o etahi waehere. Whakamahia i runga i te take pana JavaScript - ko reira he tauākī ahua, me he hiahia mārama. Mai te hanga i roto i te reo katoa, no te mea he reira ohie, me te watea.

Kia whanau "ārero tehe" me "talateu", rite ki o ratou reo hōtaka. He nga whawhai i runga i te ngā whakawhitinga me ngā tapanga. Te tamata nei ahau ki te tiki i te rangatira kāhua mahi tika o ngā hōtaka tuhituhi. I teie mahana, kaiwhakawhanake nui anaanatae whakatairanga whakaaro ahanoa-hāngai.

Heoi, mohoa noa nei i roto i mahi hou kitea ratou tauākī herenga faufaa. Ko te ngako o ngā whakaaro hou i roto i te meka e nga taonga ratou whakaturia tikanga, me te kitea rongoā. I muri i te katoa, te ahanoa - he huinga o te wetereo me semantics.