M'ndandanda wazopezekamo[Bisani][Show]
- 1. Kodi JavaScript ikutanthauza chiyani kwa inu?
- 2. Tchulani ma paradigm awiri ofunikira pakukulitsa JavaScript.
- 3. Kodi JavaScript imasiyanitsa chiyani ndi Java?
- 4. Ndi mitundu yanji ya data yomwe JavaScript imathandizira?
- 5. Kodi JavaScript ili ndi makhalidwe ati?
- 6. Kodi zovuta kugwiritsa ntchito JavaScript ndi ziti?
- 7. Kodi JavaScript imakulolani bwanji kupanga chinthu?
- 8. Mu JavaScript, mumapanga bwanji gulu?
- 9. Kodi kutanthauzira dzina ntchito mu JavaScript ndi chiyani?
- 10. Mu JavaScript, fotokozani kukweza.
- 11. Kodi kusintha kwa JavaScript kumaphatikizapo chiyani?
- 12. Chachangu ndi chiyani, ASP script kapena JavaScript?
- 13. Fotokozani momwe cholowa cha prototypal chimasiyanirana ndi cholowa chakale.
- 14. Lembani pulogalamu yomwe idzawonjezera zigawo zatsopano.
- 15. Callback: Ndi chiyani?
- 16. Kodi pulogalamu ya JavaScript ingathetsedwe bwanji?
- 17. Kutseka: Ndi chiyani? Perekani fanizo.
- 18. Kodi pali njira zotani zophatikizira JavaScript code mu fayilo ya HTML?
- 19. Kodi zowerengera nthawi mu JavaScript zimagwira ntchito bwanji?
- 20. Kodi maganizo anu ndi otani pa nkhani ya makeke?
- 21. Kodi munthu angapange bwanji makeke?
- 22. Kodi JavaScript yosintha mayina ndi yotani?
- 23. Kodi nchiyani chimapangitsa kuti tisiyanitse ndi kusiyana wina ndi mzake?
- 24. Kodi nchifukwa ninji ntchito zodzipatulira zilipo?
- 25. Kodi nchiyani chimasiyanitsa katundu ndi makhalidwe?
- 26. Mu JavaScript, kodi mivi imachita chiyani?
- 27. Kodi chinenero chimene chimatayidwa ndi chiyani?
- 28. Mu JavaScript, chonde fotokozani NEGATIVE INFINITY.
- 29. Kodi nchiyani chimasiyanitsa undefined ndi null?
- 30. Lembani JavaScript code kuti musonyeze momwe mungapezere HTML wamkati wa chinthu.
- 31. Kodi zina za JavaScript frameworks ndi ziti?
- 32. Mu JavaScript, chochitika chobwebweta ndi chiyani?
- 33. Kodi kuloweza JavaScript kumatanthauza chiyani?
- 34. Kodi kuitanitsa ndi kutumiza kunja kumatanthauza chiyani?
- 35. Kodi JavaScript's "Strict" mode ndi chiyani, ndipo imayatsidwa bwanji?
- 36. Kodi wogwiritsa ntchitoyo amakwaniritsa chiyani?
- 37. Mu JavaScript, kodi bokosi lofulumira limatanthauza chiyani?
- 38. Mu JavaScript, kodi jenereta imachita chiyani?
- 39. BOM: Ndi chiyani?
- 40. Malembo ochedwetsedwa: Amagwira ntchito yanji mu JavaScript?
- Kutsiliza
Chilankhulo chaulere komanso chotsegula ndi JavaScript. Zimapangidwa kuti zigwiritsidwe ntchito kupanga mapulogalamu ozikidwa pa intaneti. Ndilopepuka komanso limamasuliridwa, zomwe zimapangitsa kuti likhale lachangu kwambiri kuposa zinenero zina.
Ndikosavuta kugwiritsa ntchito JavaScript mkati kugwiritsa ntchito intaneti chifukwa cha kuphatikiza kwake kwa HTML. Kuti mudziwe kufunikira kwake, zimitsani JavaScript mumsakatuli wanu ndikuyesa kuyika tsambalo.
Mawebusayitiwa sagwira ntchito moyenera. Zomwe zili mkati mwawo nthawi zambiri zimakhala zoyipa. Pafupifupi asakatuli onse amakono amasakaniza HTML, CSS, ndi JavaScript.
JavaScript ndi imodzi mwazotanthauziridwa zilankhulo zamakompyuta. Womasulira ali kale m'masakatuli ambiri, kuphatikiza Google Chrome, Microsoft Internet Explorer, ndi ena.
Chifukwa chake, code yake imatha kukonzedwa ndi msakatuli wa JavaScript Engine. Pano pali oyambira ku mafunso oyankhulana a JS ndi mayankho anu ngati mwakonzekera kuyankhulana.
Cholinga cha zomwezo ndikukudziwitsani za mitundu ya mafunso omwe mungakumane nawo panthawi yofunsa mafunso. Tiyeni tiyambe.
1. Kodi JavaScript ikutanthauza chiyani kwa inu?
Chilankhulo chogwiritsidwa ntchito kwambiri pa intaneti, chomwe chimagwiritsidwa ntchito popanga mapulogalamu a kasitomala ndi mbali ya seva, ndi JavaScript. JavaScript ikhoza kuyikidwa mumasamba a HTML omwe asakatuli amatha kumvetsetsa ndikukhazikitsa, kuthandizira kuthekera kwa mapulogalamu okonda zinthu.
2. Tchulani ma paradigm awiri ofunikira pakukulitsa JavaScript.
Kupanga mapulogalamu ndi JavaScript, chilankhulo chamitundu yambiri, chimalola:
- ndondomeko / zofunika mapulogalamu
- Mapulogalamu Otsata Zinthu (OOP)
- Kugwiritsa ntchito pulogalamu
- Njira yopangira ma prototype kapena cholowa chotengera chitsanzo (chowonjezera cha OOP)
3. Kodi JavaScript imasiyanitsa chiyani ndi Java?
Ngakhale JavaScript kwenikweni ndi chilankhulo cholembera, Java ndi chilankhulo chopangira mapulogalamu. Java ndi chinenero cha mapulogalamu chomwe chimagwiritsidwa ntchito ndi opanga kupanga mapulogalamu omwe amatha kugwira ntchito pamakompyuta, makina enieni, kapena osatsegula. Mosiyana ndi izi, JS code idapangidwa kuti izingoyenda mkati mwa msakatuli.
Koma pogwiritsa ntchito Electron ndi Node.js, mapulogalamu apakompyuta odziyimira pawokha amatha kupangidwa mu JavaScript. Java ndi JS code zimasiyana kwambiri chifukwa chomalizacho chimapezeka m'mawu, pomwe yoyamba imafuna kuphatikizidwa.
4. Ndi mitundu yanji ya data yomwe JavaScript imathandizira?
Mitundu ya data yomwe JavaScript imathandizira ndi:
- Mzere
- chizindikiro
- Number
- Cholinga
- Osadziwika
- Null
- Boolean
5. Kodi JavaScript ili ndi makhalidwe ati?
Ndi chilankhulo cholembera chaulere komanso chapadziko lonse lapansi.
Ndi chilankhulo chotanthauziridwa chopanga mapulogalamu chomwe ndi chopepuka.
Amapangidwa kuti azigwiritsidwa ntchito popanga ma network-centric application.
Zonsezi zimalumikizidwa ndikuthandizira Java.
6. Kodi zovuta kugwiritsa ntchito JavaScript ndi ziti?
Ma coders omwe ali ndi chidziwitso azitha kukambirana zophophonya za chilankhulo chomwe amachikonda komanso kuyamikira zabwino zake. Chitetezo ndiye cholakwika chachikulu cha JavaScript. Funsani zambiri za momwe angagwiritsire ntchito molakwika.
Chomwe chinanso cha JavaScript ndikugwiritsa ntchito kwambiri komanso kusinthika kwake, komwe kumatha kukhala lupanga lakuthwa konsekonse chifukwa kumasiya njira zambiri zamapulogalamu zomwe zingayambitse kusagwira bwino ntchito pamakina osiyanasiyana.
7. Kodi JavaScript imakulolani bwanji kupanga chinthu?
Lingaliro la zinthu limathandizidwa bwino ndi JavaScript. Pogwiritsa ntchito chinthu chenichenicho, mutha kupanga chinthu monga momwe tawonera pansipa:
8. Mu JavaScript, mumapanga bwanji gulu?
Mndandanda weniweni ukhoza kugwiritsidwa ntchito kutanthauzira masanjidwe motere:
9. Kodi kutanthauzira dzina ntchito mu JavaScript ndi chiyani?
Pamene ntchito yotchulidwa ikufotokozedwa, nthawi yomweyo imatanthauzira dzina. Itha kufotokozedwa motere pogwiritsa ntchito mawu osakira:
10. Mu JavaScript, fotokozani kukweza.
Zolengeza zonse zosinthika ndi ntchito zimasunthidwa pamwamba mosakhazikika mu JavaScript, yomwe imadziwika kuti hoisting. Izi zikutanthawuza kuti zosintha zonse ndi ntchito, mosasamala kanthu komwe zikufotokozedwa, zimasamutsidwira pamwamba pazomwe zikuchitika. Kufikirako kungakhale kwanuko kapena kumayiko ena.
11. Kodi kusintha kwa JavaScript kumaphatikizapo chiyani?
Gawo la pulogalamu yanu pomwe kusintha kumatanthauzidwa ndi kuchuluka kwa kusintha. Pali magawo awiri okha omwe mtundu wa JavaScript ungakhale nawo.
- Zosintha zapadziko lonse lapansi: Kulikonse mu JavaScript code yanu mutha kuwona kusintha kwapadziko lonse lapansi popeza ili ndi gawo lapadziko lonse lapansi.
- Zosintha zam'deralo: Pokhapokha pazomwe zimalengezedwa m'pamene kusintha komweko kudzawonekera. Kumalo ku ntchitoyi, mikangano yantchito imakhalapo nthawi zonse.
12. Chachangu ndi chiyani, ASP script kapena JavaScript?
Mofulumira ndi JavaScript. JavaScript ikhoza kuchitidwa popanda kugwiritsa ntchito seva yapaintaneti chifukwa ndi chilankhulo cha kasitomala. Komabe, popeza ASP ndi chilankhulo cha mbali ya seva, nthawi zonse imakhala yocheperako kuposa JavaScript. Pakadali pano, JavaScript ndi chilankhulo cha mbali ya seva (nodejs).
13. Fotokozani momwe cholowa cha prototypal chimasiyanirana ndi cholowa chakale.
JavaScript ili ndi kuthekera kodabwitsa kothana ndi zoletsa za cholowa chachikhalidwe ndikulola kuti zinthu zitengere zinthu kuchokera kuzinthu zina. -
- Cholowa Chakale: Mothandizidwa ndi mawu osakira "atsopano", ntchito yomanga imapanga chitsanzo. Makhalidwe a kalasi ya makolo amaperekedwa ku chochitika chatsopanochi.
- Cholowa cha Prototypal: Chinthu chomwe chilipo chomwe chimagwira ntchito ngati chitsanzo chimakopedwa kuti chipange chochitika. Kusankha cholowa kuchokera kuzinthu zosiyanasiyana kungakhale kopindulitsa pa nthawi iyi, yomwe imapangidwa nthawi zambiri pogwiritsa ntchito fakitale kapena "Object.create()".
14. Lembani pulogalamu yomwe idzawonjezera zigawo zatsopano.
15. Callback: Ndi chiyani?
Ntchito yosavuta ya JavaScript yotumizidwa ngati mkangano kapena njira kunjira imadziwika kuti kuyimba foni. Mawu oti “call back” amatanthauza ntchito imene cholinga chake n’kuigwira ikamaliza ntchito ina. Ntchito ndi zinthu mu JavaScript. JavaScript zinthu ndi ntchito. Ntchito zimatha kubweza ntchito zina ndikulandila ntchito zina monga zolowetsa.
16. Kodi pulogalamu ya JavaScript ingathetsedwe bwanji?
Pomenya fungulo loyenera, nthawi zambiri, kiyi ya F12, asakatuli onse amakono, kuphatikiza Chrome, Firefox, ndi ena, amabwera ndi chowongolera chomwe chingagwiritsidwe ntchito nthawi iliyonse.
Ogwiritsa ntchito amatha kugwiritsa ntchito mwayi pazinthu zosiyanasiyana zoperekedwa ndi zida zowongolera. Kachidindo kamene timagwiritsa ntchito popanga mapulogalamu a JavaScript amatilolanso kuthana ndi ma code a JavaScript.
17. Kutseka: Ndi chiyani? Perekani fanizo.
Pamene kusintha komwe kumatchulidwa kunja kwa malo omwe alipo panopa kukupezeka kuchokera mkati mwake, kutsekedwa kumapangidwa. Zimakupatsani mwayi wofikira kuchuluka kwa ntchito yakunja kuchokera ku ntchito yamkati.
Nthawi iliyonse ntchito ikapangidwa mu JavaScript, kutseka kumapangidwanso. Ingolembani ntchito mkati mwa ntchito ina, iwonetseni, kenaka mugwiritse ntchito kutseka.
18. Kodi pali njira zotani zophatikizira JavaScript code mu fayilo ya HTML?
Khodi ya JavaScript imatha kuyikidwa m'njira ziwiri:
- Pamene mizere yowerengeka yokha ikufunika mkati mwa tsamba la intaneti, tikhoza kulemba JavaScript code mkati mwa script element mu fayilo yomweyo ya HTML.
- Kuti muwonjezere zolemba zonse patsamba lawebusayiti popanda kutsekereza kachidindo, titha kulowetsa fayilo ya JavaScript kukhala chikalata cha HTML.
19. Kodi zowerengera nthawi mu JavaScript zimagwira ntchito bwanji?
Zowerengera zimagwiritsidwa ntchito kuthamanga kapena kubwereza kachidindo pa nthawi yoyikidwiratu. Njira za setTimeout, setInterval, ndi clearInterval zimagwiritsidwa ntchito pochita izi.
Pogwiritsa ntchito setTimeout(function, delay) ntchito, chowerengera chomwe chimayendetsa ntchito inayake pakachedwa kuchedwa. Ntchito setInterval(function, delay) imayendetsa mobwerezabwereza ntchito yomwe yatchulidwayo ndikuchedwa komweko ndipo imangoyima ikaletsedwa.
Chowerengeracho chimauzidwa kuti chithe kugwiritsa ntchito njira ya clearInterval(id). Chifukwa zowerengera nthawi zimayendetsedwa pa ulusi umodzi, zochitika zimatha kukhala pamzere ndikudikirira kuti zichitike.
20. Kodi maganizo anu ndi otani pa nkhani ya makeke?
Ma cookie nthawi zambiri amakhala kachidutswa kakang'ono kamene tsamba lawebusayiti limatumiza ku kompyuta ya wogwiritsa ntchito ndipo imasungidwa pamenepo ndi msakatuli yemwe adagwiritsidwa ntchito poyendera tsambali.
Ma cookie amagwiritsidwa ntchito kujambula zochitika zowonera webusayiti ndikukumbukira zambiri zomwe zidzagwiritsidwe ntchito pambuyo pake.
21. Kodi munthu angapange bwanji makeke?
Zotsatirazi ndi njira yosavuta ya JavaScript yopangira makeke:
22. Kodi JavaScript yosintha mayina ndi yotani?
Mukatchula zosintha mu JavaScript, muyenera kutsatira malamulo awa:
Mawu aliwonse osungidwa a JavaScript sayenera kugwiritsidwa ntchito ngati mayina osinthika. Mwachitsanzo, mayina osinthika omwe amathera nthawi yopuma kapena boolean ndi olakwika.
Dzina la zosinthika mu JavaScript sayenera kuyamba ndi nambala (0-9). Ayenera kuyamba ndi chilembo kapena chizindikiro chapansipansi.
Mwachitsanzo, 123name si dzina lovomerezeka, ngakhale _123name kapena name123 ndi. Nkhani zokhudzana ndi mayina osiyanasiyana a JavaScript. Mayeso ndi mayeso, mwachitsanzo, ndi mitundu iwiri yosiyana.
23. Kodi nchiyani chimapangitsa kuti tisiyanitse ndi kusiyana wina ndi mzake?
Mu JavaScript, kulengeza zamitundu ndi njira zitha kupangidwa pogwiritsa ntchito let kapena var. Kusiyanitsa kwenikweni pakati pa awiriwa ndikuti lolani mawu osakira amawunikiridwa ndi chipika, pomwe mawu osakira a var amawunikidwa ndi ntchito.
24. Kodi nchifukwa ninji ntchito zodzipatulira zilipo?
Mafotokozedwe A Ntchito Yomwe Anayimitsidwa Nthawi yomweyo kapena Zochita Zosadziwika ndi mayina ena awo. Izi zimadziwika kuti "Self Invoking Functions" chifukwa zimatchedwa ndi code zokha.
Timalemba ntchito ndikuyitcha. Komabe, ntchito zosadziwika zitha kugwiritsidwa ntchito ngati tikufuna kuti pulogalamuyo iziyenda yokha ikafotokozedwa komanso ngati sitidzayigwiritsanso ntchito. Kuphatikiza apo, ntchito zina zilibe dzina.
25. Kodi nchiyani chimasiyanitsa katundu ndi makhalidwe?
Makhalidwe a JS DOM zinthu zimagwira ntchito mofananamo kusinthasintha kwa zigawo zina. Katundu amatha kukhala ndi mitundu yosiyanasiyana ya data.
Mutha kupeza katundu polumikizana ndi chinthucho mu Vanilla JS kapena kugwiritsa ntchito prop() ntchito ya jQuery.
Makhalidwe amapezeka mu HTML, osati DOM. Amafanana ndi katundu koma ali ndi mphamvu zochepa. Ngati katundu alipo, kugwira nawo ntchito kumalangizidwa pakugwira ntchito ndi mawonekedwe.
Chizindikiro ndi mtundu wa data wa chingwe, mosiyana ndi katundu.
26. Mu JavaScript, kodi mivi imachita chiyani?
Mu JavaScript, ntchito za mivi ndi njira yachangu komanso yomveka yolembera ntchito. Ntchito ya muvi ili ndi mawu awa:
27. Kodi chinenero chimene chimatayidwa ndi chiyani?
Miyezo m'malo mosiyanasiyana imayenderana m'zinenero zotayidwa. Pali magulu awiri:
Mwamphamvu: Mosiyana ndi JS, pomwe chosinthika chimatha kuvomereza nambala kapena chingwe, izi zimalola kusinthika kukhala ndi mitundu yambiri.
Statically: Mu ichi, chosinthika chimatha kusunga mtundu umodzi wokha; mwachitsanzo, mu Java, chingwe chosinthika chimatha kusunga zilembo zina.
28. Mu JavaScript, chonde fotokozani NEGATIVE INFINITY.
Nambala yapakati ikagawika ndi 0, chinthu chokhazikika NEGATIVE INFINITY chomwe zotsatira zake chimapangidwa mu JS. Izi ndi zina mwazofunikira zake:
Palibe zinthu zowonjezera zomwe ziyenera kupangidwa kuti mupeze NEGATIVE INFINITY.
Mtengo wa NEGATIVE INFINITY umagwirizana ndi mtengo wamtengo wapatali wa chinthu chapadziko lonse lapansi.
29. Kodi nchiyani chimasiyanitsa undefined ndi null?
Undefined amatanthauza kusintha komwe sikunapatsidwe mtengo. Null ndi mtengo wantchito, kumbali ina. Itha kugwiritsidwa ntchito kusonyeza kuti palibe phindu ndikupatsidwa kusinthika.
Undefined ndi mtundu mkati mwake (wosadziwika), pomwe null ndi chinthu. Undefined ndi null alinso mitundu iwiri yosiyana.
30. Lembani JavaScript code kuti musonyeze momwe mungapezere HTML wamkati wa chinthu.
31. Kodi zina za JavaScript frameworks ndi ziti?
Pulogalamu yopangidwa mu JavaScript imadziwika kuti JavaScript framework. Malinga ndi kuwongolera kuyenda, zimasiyana ndi laibulale ya JavaScript. Pali machitidwe angapo a JavaScript omwe akupezeka, komabe, ochepa omwe amadziwika kwambiri ndi awa:
- Angular
- Chitani
- Vue
32. Mu JavaScript, chochitika chobwebweta ndi chiyani?
Chochitika chikachitika m'chinthu chimodzi mkati mwa chinthu china ndipo zonse ziwiri zidalembetsa chogwirira cha chochitikacho, HTML DOM API imagwiritsa ntchito kubwebweta kwa zochitika ngati njira yofalitsira zochitika.
Pakakhala kuphulika, chochitikacho chimayamba kuzindikiridwa ndikusinthidwa ndi chinthu chamkati chisanapitirire ku zigawo zozungulira.
Kuyambira ndi chochitikacho, kuphedwa kumasunthira ku gawo la makolo ake. Pambuyo pake, chinthu cha makolo ake chimalandira kuphedwa, ndi zina zotero mpaka thupi.
33. Kodi kuloweza JavaScript kumatanthauza chiyani?
Kuloweza ndi njira yokhathamiritsa yomwe imafulumizitsa khodi yanu posunga zotsatira za mafoni amtengo wapatali ndikuwagwiritsanso ntchito pamene zolowetsazo zalandiridwanso.
Ntchito imatchedwa yokwera mtengo ngati imafuna nthawi yochuluka ndi kukumbukira kuti igwire chifukwa imapanga mawerengedwe ovuta. Cache imadzazidwa nthawi yomweyo ndi zotsatira za foni yokwera mtengo.
Ntchito yomweyi idzadutsa kuwerengera kofunikira ndikubwezeretsa mtengo wosungidwa ngati itayitanidwanso ndi magawo omwewo.
Chifukwa ntchitoyi sifunikira kuwerengeranso kapena kuwerengera komwe idachita kale, njirayi imapulumutsa nthawi komanso kukumbukira zomwe pulogalamu yanu imagwiritsa ntchito.
34. Kodi kuitanitsa ndi kutumiza kunja kumatanthauza chiyani?
Titha kupanga JavaScript code modular mothandizidwa ndi katundu ndi kunja. Titha kugawa kachidindo yathu m'mafayilo angapo pogwiritsa ntchito zolowa ndi zotumiza kunja. Zitsanzo zikuphatikizapo
35. Kodi JavaScript's "Strict" mode ndi chiyani, ndipo imayatsidwa bwanji?
Mutha kusintha kuwunika kolakwika mu code yanu pogwiritsa ntchito mawonekedwe okhwima.
Mukamagwiritsa ntchito mawonekedwe okhwima, simungathe kuwonjezera zinthu kuzinthu zomwe sizingawonjezeke, perekani zofunikira kuzinthu zowerengera zokha, kugwiritsa ntchito zosinthika zomwe zafotokozedwa momveka bwino, kapena kugawira zofunikira pazosintha zowerengera zokha.
Poyambitsa fayilo, pulogalamu, kapena ntchito ndi "kugwiritsa ntchito mwamphamvu," mutha kuyambitsa mawonekedwe okhwima.
36. Kodi wogwiritsa ntchitoyo amakwaniritsa chiyani?
Chitsanzo cha woyendetsa amatsimikizira ngati tcheni chachitsanzo cha chinthu chili ndi zochitika zamtundu wa omanga. Mwa kuyankhula kwina, chitsanzo cha wogwiritsa ntchito chimatsimikizira pa nthawi yothamanga ngati chinthu ndi chitsanzo cha kalasi.
Chitsanzo cha ogwiritsira ntchito chimagwiritsidwa ntchito mu chitsanzo pansipa kuti mudziwe mtundu wa ogwiritsa ntchito osinthika.
37. Mu JavaScript, kodi bokosi lofulumira limatanthauza chiyani?
Bokosi lofulumira ndi bokosi lomwe lili ndi bokosi lolemba lomwe limalola wogwiritsa ntchito kupereka zolowera. Bokosi la zokambirana lomwe likufunsa kuti lilowetsedwe likuwonetsedwa kudzera pa prompt () ntchito. Gwiritsani ntchito bokosi lofulumira ngati mukufuna wogwiritsa ntchito kuti alembe mtengo musanawone tsamba.
Wogwiritsa ntchito ayenera kusankha "Chabwino" kapena "Kuletsa" mubokosi loyambira lomwe limawonekera atalowetsa mtengo kuti apitilize.
38. Mu JavaScript, kodi jenereta imachita chiyani?
Ma jenereta ndi ntchito zomwe zingagwiritsidwe ntchito nthawi zosiyanasiyana. Zomwe zikuchitika komanso zomangira zosinthika za ntchitoyi zimasungidwa ndikusungidwa poloweranso.
Kuyimba koyamba kwa ntchito ya jenereta kumabweretsanso mtundu wina wa cholumikizira chotchedwa jenereta. Chotsatira ndikuyitanira njira yotsatira ya jenereta kuti mugwiritse ntchito mtengowo. Mpaka itadutsa mawu osakira, jenereta imagwirabe ntchito.
39. BOM: Ndi chiyani?
BOM, kapena mtundu wa chinthu cha msakatuli, amalola ogwiritsa ntchito kuyanjana ndi asakatuli, omwe zenera limakhala ngati chinthu choyamba. Kuphatikiza pa zinthu zina, chinthu chazenera chili ndi chikalata, mbiri yakale, chophimba, navigator, ndi malo.
Ntchito ya zenera, komabe, imatha kupezeka mwachindunji komanso powonetsa zenera.
40. Malembo ochedwetsedwa: Amagwira ntchito yanji mu JavaScript?
Msakatuli amayamba kuwerengera nambala ya HTML tsamba likadzadza. Mwachikhazikitso, msakatuli amaimitsa kachidindo ka HTML akakumana ndi script ndikuyamba kuyendetsa script m'malo mwake.
Mukamaliza kulemba, msakatuli ayambiranso kukonza kachidindo ka HTML.
Kutsegula masamba kudzachedwetsedwa ndi seva yaulesi kapena zolemba zazikulu. Ma script ochedwetsedwa amasiya kuyendetsa script mpaka chikalatacho chikasinthidwa.
Kuchedwerako kwa script kumachepetsa nthawi yomwe imatengera tsamba lawebusayiti.
Kutsiliza
Tikukhulupirira kuti mafunso awa ofunsa mafunso a JavaScript adzakuthandizani, kaya ndinu wopanga mapulogalamu omwe mukukonzekera msonkhano kapena woyang'anira ntchito yemwe akuyesera kupeza wofunsira woyenera.
Kumbukirani kuti ukatswiri waukadaulo ndi chidziwitso zimapanga gawo laling'ono la ntchito yolembera anthu. Kuwonetsetsa kuti mwafika (kapena kupeza wofunsira woyenera) ntchitoyo, zomwe zidachitika kale, komanso luso lofewa ndizofunikira kwambiri.
Dziwani kuti nthawi zambiri pamakhala mayankho angapo olondola pamafunso osatsegula a JavaScript. Ofunsayo ali ndi chidwi ndi zifukwa zomwe mwayankha, osati yankho lomwe munaloweza pamtima.
Khalani okonzekera mafunso otsatiridwa a momwe mudayankhira yankho lanu ndipo nthawi zonse muzitha kufotokozera malingaliro anu.
Onani Mndandanda wa Mafunso a Hashdork kuti muthandizidwe pokonzekera zoyankhulana.
Arun
Wow, Nkhaniyi inandithandiza kwambiri panthawi yokonzekera Mafunso a Javascript